Cook Medical Technologies LLC

National University of Ireland, Galway

University of Galway

Sean Cummins

Darach McGrath

James Butler

Olivia Ryan

Joe Hayes

Martin O'Halloran

Nigel Phelan

Stephen Cox

James C Merk

Brent A Mayle

Donagh O'Sullivan

Dean R Puckett

WenHong Neoh

Tiffani Cannon

Tawnya Wood

Shane Holland

Darach Mcgrath

A method of treating a vessel in a subject comprises the steps of advancing a device distally across a treatment zone in a vessel, wherein the device comprises an elongated catheter having a lumen and a distal end, and a radially expansive treatment element disposed in the lumen and configured for axial movement relative to the catheter; deploying the radially expansive treatment element proud of the distal end of the catheter to radially expand and circumferentially impress against the vessel lumen at a distal end of the treatment zone; and withdrawing the deployed radially expansive treatment element proximally along the treatment zone with the treatment element circumferentially impressed against the vessel lumen to mechanically and circumferentially denude the treatment zone of the vessel. The radially expansive treatment element is then recaptured into the lumen of the catheter, before the device is withdrawn from the treated vessel.

Devices and methods for treating a vessel in a subject

A vascular intervention device delivery system includes a catheter with a proximal end attached to a handle, and a distal carrier segment for mounting a vascular intervention device thereon. A retractable sheath is movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment. A pull is attached to the retractable sheath and extends proximally from the retractable sheath toward the handle. A majority of the length of the pull has a cross sectional shape with a concave side that faces the longitudinal axis and is opposite to a convex side that faces away from the longitudinal axis. The cross sectional shape has a width that is greater than a thickness.

Pull wire for vascular intervention device delivery system

A delivery system is provided for self-expanding medical devices, such as stents. The delivery system has a restraining sheath that maintains the stent in a compressed state prior to deployment. The restraining sheath terminates distally from the deployment handle, and a wire connects the restraining sheath to the deployment handle. The restraining sheath is withdrawn from the stent to deploy the stent by pulling the wires proximally at the deployment handle.

Delivery system for a self-expanding medical device

A vascular intervention device delivery system, such as for implanting a self expanding stent, includes a thumbwheel rotatably mounted in a handle. A catheter has a proximal end attached to the handle and a distal carrier segment for mounting a stent thereon. A retractable sheath is movable to a position retracted proximally to uncover the distal carrier segment. A pull with a curved cross section extends between the thumbwheel and the retractable sheath. An idler wheel with a perimeter notch is rotatably mounted in the handle proximal to the thumbwheel. A pin is movably in the handle between a first position received in the perimeter notch to block rotation of the idler wheel, and a second position outside of the perimeter notch to permit rotation of the idler wheel. The pull wraps around the idler wheel to return in a direction for being wound onto a spool of the thumbwheel.

Thumbwheel actuated vascular intervention device delivery system

A vascular intervention device delivery system includes a thumbwheel rotatably mounted in a handle. A termination assembly is mechanically connected to the handle. A catheter extends through the termination assembly and has a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device. A retractable sheath is movable from a first position covering the distal carrier segment to a second position retracted proximally to uncover the distal carrier segment. A pull extends between the thumbwheel and the retractable sheath, and through the termination assembly. A stability sheath that receives the pull and the inner catheter has a proximal end that terminates in the termination assembly.

Termination assembly for vascular intervention device delivery system

A vascular intervention device delivery system, such as for implanting a self expanding stent, includes a thumbwheel rotatably mounted in a handle. The thumbwheel includes a radially outward facing thumb surface and a radially inward facing ratchet surface of a ratchet. A catheter has a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device thereon. A retractable sheath is movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment. A pull extends between the thumbwheel and the retractable sheath. A ratchet pawl is mounted in the handle and has a catch in contact with the ratchet surface. The ratchet holds the thumbwheel against rotation in a forward direction, and the retractable sheath moves responsive to rotation of the thumbwheel in a reverse direction.

Ratchet operated vascular intervention device delivery system

A vascular intervention device delivery system, such as for implanting a stent, includes a thumbwheel rotatably mounted in a handle. A catheter has a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device thereon. A retractable sheath is movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment. A pull extends between the thumbwheel and the retractable sheath. A latch is positioned in the handle and moveable from a locked position at which the latch engages the radially outward thumb surface, and an unlocked position at which the latch is out of contact with the thumbwheel. A pusher, which is partially positioned outside of the handle, is operable to move the latch from the locked position to the unlocked position. The retractable sheath moves responsive to rotation of the thumbwheel.

A vascular intervention device delivery system, such as for implanting a self expanding stent, includes a thumbwheel rotatably mounted in a handle. The thumbwheel includes a radially outward thumb surface and a spool. A catheter has a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device thereon. A retractable sheath is movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment. A pull extends between the thumbwheel and the retractable sheath. The pull terminates at a proximal end with an integral anchor that extends through an opening in a wall that separates an inner surface of spool from a collection surface. The retractable sheath moves responsive to rotation of the thumbwheel in a first direction.

Pull wire and spool for vascular intervention device delivery system

A vascular intervention device delivery system includes a handle comprised of a first shell connected to a second shell. A thumbwheel, which includes a radially outward thumb surface and a spool, is rotatably mounted in the handle. A catheter has a proximal end attached to the handle and a distal carrier segment for mounting a vascular intervention device thereon. A retractable sheath is movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment. A pull extends between the thumbwheel and the retractable sheath. A rim of the pull and an internal surface of the first shell define a pull avoidance volume. The first shell includes a plurality of ribs positioned in the pull avoidance volume and oriented transverse to a pull pathway around an idler wheel, and the ribs block entry of the pull into the pull avoidance volume. The retractable sheath moves toward the second position responsive to rotation of the thumbwheel in a first direction.

Ribbed handle for vascular intervention device delivery system

A vascular intervention device delivery system, such as for implanting a self expanding stent, includes a thumbwheel rotatably mounted in a handle. The thumbwheel includes a radially outward thumb surface and a radially inward ratchet surface of a ratchet. A catheter has a proximal end attached to the handle, and a distal carrier segment for mounting a vascular intervention device thereon. A retractable sheath is movable from a first position covering the distal carrier segment to a second position retracted proximally uncovering the distal carrier segment. A pull extends between the thumbwheel and the retractable sheath. A ratchet pawl is mounted in the handle and has a catch in contact with the ratchet surface. The ratchet holds the thumbwheel against rotation in a forward direction, and the retractable sheath moves responsive to rotation of the thumbwheel in a reverse direction.

Growing community of inventors

Limerick, Ireland

Sean Cummins