NovoStent Corporation Patent applications |
Patent application number | Title | Published |
20130123899 | Vascular Prosthesis and Methods of Use - An implantable vascular prosthesis is provided for use in a wide range of applications wherein at least first and second helical sections having alternating directions of rotation are coupled to one another. The alternating helical section includes a first and second helical portions each having a flange and having adjacent ends joined directly to one another to define an apex. Each helical portion has a widened flange portion adjacent to the apex, the widened flange portions extending into a space between the helical portions. The prosthesis is configured to conform to a vessel wall without substantially remodeling the vessel, and permits accurate deployment in a vessel without shifting or foreshortening. | 05-16-2013 |
20130103130 | Catheter Assembly With User-Assisting Handle - A catheter assembly includes a catheter, including an inner member and a sheath, extending from a handle. The handle includes a housing, a braking assembly, a carriage and a carriage driver. The braking assembly comprises a braking element within the housing interior and a braking element rotator. The carriage comprises at least one carriage braking surface engaging the braking element. The carriage driver, such as a spring, biases the carriage towards the proximal end of the handle. The inner member has a proximal end secured to the housing. The sheath has a proximal end secured to the carriage. Rotating the braking element causes the carriage to move proximally as the carriage braking surface slides along the braking element. This causes the sheath to move proximally relative to the inner member. | 04-25-2013 |
20110218613 | Vascular Prosthesis Assembly with Retention Mechanism and Method - A vascular prosthesis assembly includes a self expanding prosthesis and a selectively releasable retention mechanism over the outer surface of the prosthesis which maintains the vascular prosthesis in a contracted state. The retention mechanism may include a removable strand extending along the length of the prosthesis having a series of slip knots. The retention mechanism may also include a removable strand which engages overlying layers of a wrapped prosthesis by the passage of the strand through openings in the overlying layers. Manipulation of a user-accessible release strand permits release of the retention mechanism. The retention mechanism may also include a generally cylindrical sheath housing the vascular prosthesis, the sheath constructed to be split and removed to release the prosthesis. A method releases the prosthesis to expand at a target site using a retention mechanism. | 09-08-2011 |
20110218608 | Vascular Prosthesis Delivery System and Method - A vascular prosthesis delivery system comprises a radially self expandable vascular prosthesis and a delivery sheath with a lumen with a smaller diameter storage region and a larger diameter delivery region. A prosthesis is housed within the storage region and is movable into the delivery region for delivery at a target site within a patient. The delivery force required to move the prosthesis from the delivery region into the patient can be less than the force required to move the prosthesis from the storage region into the delivery region. In some examples, the storage region defines a tapered lumen expanding in diameter in a distal direction. In some examples, the storage and delivery regions are generally coextensive and define a tapered lumen expanding in diameter in a distal direction. A method stores a vascular prosthesis in the storage region and delivers it to a target site from the delivery region. | 09-08-2011 |
20110054590 | VASCULAR PROSTHESIS WITH STRESS RELIEF SLOTS - A vascular prosthesis comprises generally tubular body placeable in contracted and expanded states and has an axial length and a circumferential dimension in the expanded state. The body includes a series of circumferential elements having first lengths. First and second connectors have connector lengths and join alternating ends of adjacent circumferential elements. The first length plus the connector lengths joined thereto equal a total circumferential length. Each connector length is between 2.5% and 25% of the total circumferential length. Adjacent circumferential elements and connectors extending therefrom are separated by a stress relief slot having a relief slot length of more than 50% and less than 95% of the total circumferential length. The stress relief slots have narrow width portions over a majority of the relief slot lengths, the narrow width portions having lateral dimensions of no greater than about 3 mm. | 03-03-2011 |
20080221665 | Vascular prosthesis and methods of use - An implantable vascular prosthesis is provided for use in a wide range of applications wherein at least first and second helical sections having alternating directions of rotation are coupled to one another. The prosthesis is configured to conform to a vessel wall without substantially remodeling the vessel, and permits accurate deployment in a vessel without shifting or foreshortening. | 09-11-2008 |
20080221663 | Vascular prosthesis and methods of use - An implantable vascular prosthesis is provided for use in a wide range of applications wherein at least first and second helical sections having alternating directions of rotation are coupled to one another. The prosthesis is configured to conform to a vessel wall without substantially remodeling the vessel, and permits accurate deployment in a vessel without shifting or foreshortening. | 09-11-2008 |
20080221658 | Vascular prosthesis and methods of use - An implantable vascular prosthesis is provided for use in a wide range of applications wherein at least first and second helical sections having alternating directions of rotation are coupled to one another. The prosthesis is configured to conform to a vessel wall without substantially remodeling the vessel, and permits accurate deployment in a vessel without shifting or foreshortening. | 09-11-2008 |
20080221657 | Delivery system and method for vascular prosthesis - A delivery system for an implantable vascular prosthesis is provided for a vascular prosthesis including at least first and second helical sections having alternating directions of rotation that are coupled to one another at apices. The delivery system includes an elongate body, a plurality of retainers and an outer sheath. The plurality of retainers are configured to temporarily retain a plurality of inner wound apices of the vascular prosthesis. The outer sheath is configured to retain the vascular prosthesis in a contracted state on the elongate body. | 09-11-2008 |