Cook Medical Technologies LLC

Cook Biotech, Inc.

University of Akron

Oregon Health & Science University

Cook Incorporated

Muffin Incorporated

Global Therapeutics, LLC

Sean Chambers

Ram H Paul, Jr

Jeffry Scott Melsheimer

Arman H Valaie

Ram Paul

Charles L McIntosh

Jessica L Burke

Charles W Agnew

Siddharth Vad

Steen Aggerholm

Grant T Hoffman

Mark Robert Frye

Cleon Stanley

Mark Allen Magnuson

Ghassan S Kassab

Thomas A Osborne

Brian L Bates

F Joseph Obermiller

Joshua Frye Krieger

Scott E Eells

Zachary Berwick

Shyam S V Kuppurathanam

James R Randolph

David Paul Biggs

Joe Horn

Neal E Fearnot

Brian C Case

Jacob A Flagle

Fred T Parker, Jr

Andrew K Hoffa

Dusan Pavcnik

Matthew L Becker

Chad E Johnson

Gary Neff

Elizabeth Anne Theobald

Norman Jaffe

Michael D Deckard

Tyler Joseph Bunch

Frederick S Keller

Christina Rauff Hansen

Dennis Griffin

Colleen Gemborys

Zachary Kurtiss Zander

Brad Shirley

Alec Cerchiari

Julia E Leslie

Rodney Thurman

Eric Brandner

Creasy Clauser Huntsman

David Gross

Willie C McRoy, Jr

Example access devices, treatment devices, and kits useful in performing treatment under magnetic resonance imaging and related methods are described. An example access device includes an elongate tubular member formed of an MRI compatible material and moveable between a first, unexpanded configuration and a second, expanded configuration. The elongate tubular member has a central lengthwise axis, a proximal end, a distal end, an axial length, and a main body that defines a circumferential wall, a lumen, a proximal opening, a distal opening, and a main body opening. The main body opening is arranged in a spiral relative to the lengthwise axis and extends circumferentially along the circumferential wall. The main body opening extends along the entire axial length of the elongate tubular member from the proximal end to the distal end.

Access devices, treatment devices, and kits useful for performing treatment under magnetic resonance imaging and related methods

Valve devices, methods of making valve devices, and methods of treating various venous-related conditions, disorders and/or diseases are described. In one embodiment, a valve device includes an expandable support frame and a bioprosthetic valve attached to the support frame. The bioprosthetic valve comprises a leaflet and a contiguous wall portion harvested from a multi-leaflet xenogeneic valve. The contiguous wall portion includes the attachment region where the leaflets attaches to the vessel wall and, in some embodiments, includes the natural margins of attachment between the leaflet and vessel wall.

Implantable valve device

Medical device loading apparatuses, systems, methods and kits are described. A loading apparatus comprises a main body having a proximal end defining a proximal opening, a distal end defining a distal opening, and a passageway extending between the proximal and distal openings. The passageway defines a proximal chamber having a first inner diameter, a distal chamber having a second inner diameter, and a transition chamber disposed between the proximal and distal chambers. The transition chamber has an inner diameter that transitions from the larger second inner diameter to the smaller first inner diameter. The main body has a separable connection that divides the main body between proximal and distal portions when disrupted. An expandable intraluminal medical device can be loaded into a delivery catheter using the loading apparatus by placing the device into the passageway such that it is in a radially-expanded configuration; pulling the device along an axial path through the loading apparatus such that the device transitions from the radially-expanded configuration to a radially-compressed configuration; and pushing the radially-compressed device along the axial path into the delivery catheter.

Loading apparatus and system for expandable intraluminal medical devices

Support frames and medical devices are described. An example medical device comprises an expandable support frame with first and second leaflets attached to the support frame. Each of the first and second leaflets defines a domed radius that is equal to or less than the radius of the expandable support frame when the expandable support frame is in an expanded configuration and the leaflets are subjected to fluid pressure sufficient to affect closure of the valve orifice.

Expandable support frame and medical device

In various embodiments, the present invention provides a functionalized thermoplastic polyurethane (TPU) containing bulk incorporated or surface-grafted quaternary ammonium compounds (QAC)s for contact-killing of a variety of microbes, where the QACs are on the surface of TPU to provide a sterile surface material that prevents bacteria commonly involved in device-associated infections (DAIs) from proliferating. The functionalized TPUs of the present invention can be formed into a wide variety of 3-dimensional shapes, such as catheters, medical tubing, laryngeal or tracheal stents, sutures, prosthetics, wound dressings, and/or a coating for medical devices and contains the residue of either a QAC containing diol monomer or an alkene functional diol monomer, which then allows the TPU to be functionalized with a QAC containing disulfide or free thiol compound, to form a quaternary ammonium functionalized thermoplastic polyurethane compound having antimicrobial properties for use in medical devices.

Contact-killing, QAC functionalized thermoplastic polyurethane for catheter applications

Among other things, there are disclosed apparatuses and methods for medically sealing an opening in a vessel or wall. For example, in medical applications, a delivery tube is provided for insertion through a sheath into a vessel (e.g. a blood vessel). A dome-shaped seal fixed to a filament, an absorbent and/or compressible buffer, and a locking member are provided in the delivery tube. The delivery tube is configured so that it can be inserted into the vessel through a sheath. Tension is maintained on the filament to hold the seal against the tube or sheath. The sheath is pulled out, which pulls out the tube at the same time, leaving the seal over the opening in the vessel wall. The locking member compresses the buffer against the outside of the vessel and with the filament holds the seal in place against the inside of a vessel.

Devices and methods useful for sealing bodily openings

A helical stent is provided that is wound in a zig-zag pattern along a pitch angle with respect to a plane transverse to the axis of the stent. A bisecting line extending through a bend and between two adjacent angular struts is also angled with respect to the longitudinal axis of the stent.

Helical stent

Animal models useful in the evaluation of medical devices, such as intraluminal medical devices, including intraluminal valve prostheses, are described. An example animal model comprises an animal in which a chordae tendineae attached to at least one of the leaflets of the tricuspid valve has been cut during an interventional procedure. Methods of evaluating intraluminal medical devices are also described. An example methods comprises cutting chordae tendineae attached to a leaflet of a tricuspid valve of an animal; allowing the animal to recover from the step of cutting the chordae tendineae; implanting an intraluminal medical device at a target site within a body vessel of the animal; allowing the animal to recover from the step of implanting an intraluminal medical device; and monitoring in vivo performance of the intraluminal medical device.

Tricuspid regurgitation model and methods of evaluating intraluminal medical devices

A method for making a graft layer is provided. The graft layer has at least two layers with different porosities. The two layers are applied by electrospinning. The parameters of the electrospinning may be varied when applying the first and second layers in order to achieve different porosities of the first and second layers.

Method for electrospinning a graft layer

A drug delivery device () includes expandable element () formed of a braided structure having a body portion () and first and second end cones (). The end cones are attached at their necks () to a catheter assembly (). The expandable element () can expand to a vessel contacting configuration, in which the body portion () contacts the vessel wall. Bioactive agent () covers at least the outer surface of the body portion () such that bioactive material can be administered to a vessel wall. The end cones () have an open structure allowing unrestricted passage of blood through the device () in the deployed configuration, such that blood flow can be maintained during the administration of bioactive agent () from the device (). The expandable element () can be radially contracted by extending it in the longitudinal direction, both for deployment endoluminally to the treatment site and also for retrieval following the administration of the bioactive material.

Endoluminal drug delivery device

Growing community of inventors

Bloomington, IN, United States of America

Sean Chambers