Patent application number | Description | Published |
20090076445 | Sterile catheter pullback mechanism assemblies - One aspect of the invention provides catheter pullback apparatuses in which a reusable drive component is enclosed in a sterile disposable barrier enclosure, such as a polymeric sheath/bag. In one embodiment, the reusable drive component includes a pullback carriage that is magnetically coupled, through the sterile barrier, to a slideable catheter shuttle adapted to retain a catheter hub of a catheter. In another embodiment, a sterile barrier-enclosed drive component is inserted into a housing, in which process a piercing tip provided on the catheter shuttle pierces the enclosure and mechanically mates the slideable catheter shuttle and pullback carriage. In this manner, non-sterility of the operating environment is minimized. | 03-19-2009 |
20090099652 | Composite Vascular Prosthesis - A novel treatment for atherosclerotic vascular disease is described utilizing the implantation of a thin, conformable biocompatible prosthesis constructed from a composite of various structural and therapeutic scaffolds in combination with one or more bioactive agents. This prosthesis can be delivered into position over a lesion in order to passivate atherosclerotic plaques with minimal remodeling of the artery, or alternatively can be applied with a balloon to passivate the remodeled site. The composite prosthesis itself provides mild structural reinforcement of the vessel wall and an evenly distributed platform for the introduction of bioactive therapeutic agents. | 04-16-2009 |
20090216309 | CONFORMABLE VASCULAR PROSTHESIS DELIVERY SYSTEM - Novel approaches for a conformable vascular prosthesis delivery system are provided which overcome the limitations of existing high pressure balloons for delivering intravascular prostheses to the site of high-risk plaques. One embodiment involves a short balloon segment which is inflated at one end of the prosthesis and then pulled to traverse the length of the prosthesis, dilating the surrounding prosthesis and securing it to the vessel wall as it traverses the length of the prosthesis. The short balloon segment causes less local trauma to the vessel relative to a full length balloon. Another embodiment involves use of a self-expandable mesh to expand the surrounding prosthesis and secure it to the vessel wall. The self expandable mesh is less traumatic than a typical angioplasty balloon because of the lower radial forces applied and the relatively higher transverse flexibility of the mesh. | 08-27-2009 |
20110230770 | Catheter Probe Arrangement for Tissue Analysis by Radiant Energy Delivery and Radiant Energy Collection - A catheter tip apparatus arranged in a catheter for the delivery and collection of a light-energy signal to permit subsequent computerized analysis of body tissue by the collected signal. The apparatus comprises an elongated housing supporting a first reflective surface and a second reflective surface. The first reflective surface and the second reflective surface are longitudinally spaced apart from one another. A first flexible, elongated energy bearing delivery fiber has a distalmost end arranged adjacent the first reflective surface. A second flexible, elongated energy bearing collection fiber has a distalmost end arranged adjacent the second reflective surface. The housing is rotatably supported on a flexible catheter sheath for insertion of the catheter into a mammalian body for tissue analysis thereof. | 09-22-2011 |
20110313502 | COMPOSITE VASCULAR PROSTHESIS - A novel treatment for atherosclerotic vascular disease is described utilizing the implantation of a thin, conformable biocompatible prosthesis constructed from a composite of various structural and therapeutic scaffolds in combination with one or more bioactive agents. This prosthesis can be delivered into position over a lesion in order to passivate atherosclerotic plaques with minimal remodeling of the artery, or alternatively can be applied with a balloon to passivate the remodeled site. The composite prosthesis itself provides mild structural reinforcement of the vessel wall and an evenly distributed platform for the introduction of bioactive therapeutic agents. | 12-22-2011 |