Sunday, August 31, 2014 Last update: 12:33 AM
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Medical

Catheter system with spacer member

Prosthesis - Mon, 08/25/2014 - 1:53pm
A stent delivery system includes outer and inner elongated, flexible tubular members each having a distal and proximal ends. The outer tubular member is sized to be passed through the body lumen with the distal end advanced to the deployment site and with the proximal end remaining external of the...
Categories: Medical

Lock/floating marker band on pusher wire for self-expanding stents or medical devices

Prosthesis - Mon, 08/25/2014 - 1:53pm
An apparatus for deploying and retrieving a self-expanding intravascular stent includes an intravascular delivery wire and floating marker band movably retained over the intravascular stent delivery wire and releasably mounting the self-expanding intravascular stent. The floating marker band is movably retained to a fixed marker band, and a distance between...
Categories: Medical

Minimally invasive surgical apparatus and methods

Prosthesis - Mon, 08/25/2014 - 1:53pm
Apparatus and methods are described for performing percutaneous catheter-based interventional surgery. The apparatus comprises first and second devices that are located in adjacent body cavities, such as adjacent blood vessels, the first device being capable of transmitting a directional signal that can be received by the second device. The direction...
Categories: Medical

Pre-loaded multiport delivery device

Prosthesis - Mon, 08/25/2014 - 1:53pm
A pre-loaded stent graft delivery device and stent graft, the stent graft delivery device. The stent graft has at least one fenestration or side arm and the fenestration is preloaded with an indwelling guide wire. Indwelling access sheaths are provided within auxiliary lumens of a pusher catheter and dilators are...
Categories: Medical

Wedge wire for use with a narrowed bifurcation vessel

Prosthesis - Mon, 08/25/2014 - 1:53pm
A wedge wire for maintaining the patency of an opening to a branch vessel while installing a stent in a main branch of a narrowed bifurcated vessel is provided. The wedge wire has a wedge portion that is larger than the rest of the body of the wedge wire and...
Categories: Medical

Inner catheter arrangement for a self-expanding medical device delivery system

Prosthesis - Mon, 08/25/2014 - 1:53pm
A delivery system for a self-expanding medical device is provided. The delivery system includes an outer sheath that radially restrains the medical device. First and second inner catheters are disposed within the outer sheath. The first inner catheter is a composite structure with a closed coil wire covered by a...
Categories: Medical

Stent-graft delivery having a tip capture mechanism with elongated cables for gradual deployment and repositioning

Prosthesis - Mon, 08/25/2014 - 1:53pm
Stent-graft delivery systems having a tip capture mechanism with a plurality of elongated cables that allow for gradual deployment and repositioning of a stent-graft prosthesis. The tip capture mechanism includes a guiding assembly, a distal tip assembly, and a plurality of cables. In a first relative position, the distal tip...
Categories: Medical

Attachment of stent to graft fabric with an anchoring machine stitching

Prosthesis - Mon, 08/25/2014 - 1:53pm
The invention relates to stent-grafts having a continuous anchoring machine stitching and methods of attachment of a stent to the graft material. The continuous anchoring machine stitching includes a series of loop points used to attach the stent to the graft material....
Categories: Medical

Apparatus for manufacturing scaffold and scaffold manufactured by the same

Prosthesis - Mon, 08/25/2014 - 1:53pm
In an apparatus for manufacturing a scaffold and a scaffold manufactured by the apparatus, a collector is disposed under a dispensing head that dispenses melted bio materials (polymer) for manufacturing the scaffold. The collector has a cylindrical tube shape. Both sides of the tube shape are fixed. Thus, the tube...
Categories: Medical

Apparatus and methods for deployment of linked prosthetic segments

Prosthesis - Mon, 08/25/2014 - 1:53pm
A luminal prosthesis comprises a plurality of radially expandable prosthetic stent segments arranged axially. Two or more of the prosthetic stent segments are separable upon expansion from the remaining prosthetic stent segments and a coupling structure connects at least some of the adjacent prosthetic stent segments to each other. The...
Categories: Medical

Stent-based extra-venous support for venous valve repair

Prosthesis - Mon, 08/25/2014 - 1:53pm
An oval-shaped extra-venous support for venous valve repair, including a cylindrical channel mesh shell, the cross-section whereof is oval, which is a one-piece one (1), laterally open (g) and includes anchor means (101′, 101″, 101′″; 103′; 103″, 103′″) in correspondence with at least a cross-section thereof at both the opposite...
Categories: Medical

Bioerodible magnesium alloy microstructures for endoprostheses

Prosthesis - Mon, 08/25/2014 - 1:53pm
A bioerodible endoprosthesis includes a bioerodible magnesium alloy. The bioerodible magnesium alloy has a microstructure including equiaxed Mg-rich solid solution-phase grains having an average grain diameter of less than or equal to 5 microns and second-phase precipitates in grain boundaries between the equiaxed Mg-rich solid solution-phase grains. The beta-phase precipitates...
Categories: Medical

Stent fabrication via tubular casting processes

Prosthesis - Mon, 08/25/2014 - 1:53pm
Tubular casting processes, such as dip-coating, may be used to form substrates from polymeric solutions which may be used to fabricate implantable devices such as stents. The polymeric substrates may have multiple layers which retain the inherent properties of their starting materials and which are sufficiently ductile to prevent brittle...
Categories: Medical

Drug delivery system and method of manufacturing thereof

Prosthesis - Mon, 08/25/2014 - 1:53pm
A medical device for surgical implantation adapted to serve as a drug delivery system has one or more drug loaded holes with barrier layers to control release or elution of the drug from the holes or to control inward diffusion of fluids into the holes. The barrier layers are non-polymers...
Categories: Medical

Transcatheter valve prosthesis and a concurrently delivered sealing component

Prosthesis - Mon, 08/25/2014 - 1:53pm
A method of preventing paravalvular leakage includes concurrent delivery of a heart valve prosthesis and an annular sealing component. During delivery, the sealing component is moved from a first position to a second position of the heart valve prosthesis which is longitudinally spaced apart from the first position of the...
Categories: Medical

Valve prostheses

Prosthesis - Mon, 08/25/2014 - 1:53pm
The prosthetic valves include valve fixation devices which secure the prosthetic valve to the wall of the vessel. In one embodiment, the prosthetic valves have at least one substantially rigid strut, at least two expandable fixation rings located about the circumference of the base of the apex of the valve,...
Categories: Medical

Prosthetic aortic heart valves

Prosthesis - Mon, 08/25/2014 - 1:53pm
A prosthetic aortic valve includes an annular, annulus inflow portion that is designed to reside in or near the patient's native aortic valve annulus, and an annular, aortic outflow portion that is designed to reside in the patient's aorta downstream from at least a portion of the valsalva sinus. The...
Categories: Medical

Aortic annuloplasty ring

Prosthesis - Mon, 08/25/2014 - 1:53pm
An annuloplasty ring to resize a dilated aortic root during valve sparing surgery includes a scalloped space frame having three trough sections connected to define three crest sections. The annuloplasty ring is mounted outside the aortic root, and extends in height between a base plane and a spaced apart commissure...
Categories: Medical

Valve replacement systems and methods

Prosthesis - Mon, 08/25/2014 - 1:53pm
Systems and methods for medical interventional procedures, including approaches to valve implant. In one aspect, the methods and systems involve a modular approach to treatment....
Categories: Medical

Transcatheter valve stent anchors

Prosthesis - Mon, 08/25/2014 - 1:53pm
A stent for use in a prosthetic heart valve has a plurality of expandable and collapsible closed cells, a portion of which form an annulus section adapted for placement within the annulus of the native heart valve. Anchor features of the stent residing within at least some closed cells are...
Categories: Medical