Abstract:
Delivery systems are disclosed for bioresorbable scaffolds that decrease in length when expanded to a deployment diameter that allow accurate positioning of the scaffold at a lesion. The scaffolds are mounted on a catheter that includes marker bands that are positioned interior to the proximal and distal edges of the crimped scaffold to anticipate the shortening of the scaffold upon deployment. Delivery systems are further disclosed for bioresorbable scaffolds that increase in length when expanded to a deployment diameter that allow accurate positioning of the scaffold at a lesion. The scaffolds are mounted on a catheter that includes marker bands that are positioned exterior to the proximal and distal edges of the crimped scaffold to anticipate the lengthening of the scaffold upon deployment.
Abstract:
Die Erfindung betrifft einen Doppelstent mit 2 koaxial angeordneten Stents, wobei zwischen einem ersten inneren Stent und einem zweiten äußeren Stent eine erste Membran und auf dem zweiten Stent eine zweite Membran angeordnet ist und die Membranenden der ersten und der zweiten Membran an den Enden der Stents zusammengefasst sind und auf die Innenseite des ersten Stents umgeschlagen und unter Federzungen des ersten Stents festgeklemmt sind.
Abstract:
A stent-graft assembly is provided for a variety of medical treatments. The stent-graft assembly includes a stent disposed to and attached between an inner layer of graft material and an outer layer of graft material. One of both of the graft layers includes one or more of a depression, dimple or detent that increases the localized surface area of the graft in one or more portions of the stent otherwise susceptible to graft stretching in the absence of the depression, dimple or detent. There is also described a method of forming dimples in selective locations on one or port graft layers in one or more locations relative to a portion of the stent where a portion of the graft may be susceptible to stretching or tearing during crimping or loading operations.
Abstract:
A bioabsorbable stent comprises a plurality of struts interconnected by a plurality of curved intersections. Each of the plurality of curved intersections defines a crescent shaped opening therethrough. The stent has a manufactured state, a crimped state and an expanded state. The crescent shaped openings each have a width and a length such that in the crimped state the width of the crescent shaped opening is less than the width of the crescent shaped opening in the manufactured state or the expanded state.
Abstract:
Apparatus and methods are described including a stent (20) configured to be placed inside an aorta of a subject, the stent comprising one or more electrodes (22), control circuitry (32), and a first antenna (28) coupled thereto. A second antenna (26) is placed on the subject, such that the second antenna extends at least from above a left clavicle of the subject to below a jugular notch of the subject and from below the subject's jugular notch to above a right clavicle of the subject, the second antenna being configured to transmit an electrical signal to the first antenna via inductive coupling. Other applications are also described.
Abstract:
A scaffold includes a radiopaque marker connected to a strut. The marker is retained within the strut by one or more of a mechanical interference fit, a polymer coating or melt, and/or by friction. The marker can take the form of a bead, rivet or snap-in marker, or a tube deformed when attached to the strut. The strut is made from a tube. The strut has a thickness of about 100 microns.
Abstract:
A method of manufacturing a tubular medical implant, such as a stent, includes introducing a liquid polymer material into an axial lumen of an elongate metal tube, the metal tube having an inner wall defining the lumen; allowing the polymer material to solidify within the metal tube lumen, the solidified polymer forming a high friction surface in contact with the inner wall of the metal tube; securing the metal tube, including the solidified polymer material therein, to a collet of a laser etching system; and laser etching a predetermined pattern of openings in the metal tube.
Abstract:
This invention discloses method of manufacture of balloon expandable stent made from bioabsorbable polymer with thin struts (strut thickness 130 μm or less, preferably 100- 110 μm) with high fatigue and radial strength. The invention further discloses balloon expandable stent made from bioabsorbable polymer with thin struts (strut thickness 130 μηι or less, preferably 100-110 μm) with high fatigue and radial strength.