Abstract:
Stents fabricated from hydrolytically degradable polymers with accelerated degradation rates and methods of fabricating stents with accelerated degradation rates are disclosed.
Abstract:
A method of treating a bodily lumen with a stent including disposing a stent within a bodily lumen in which the stent has a plurality of deformable struts that are substantially circumferentially aligned is described. The deformable struts are configured to selectively deform in a circumferential direction in localized regions in the struts upon application of an outward radial force. The stent is expanded by applying the outward radial force which causes selective deformation of the deformable struts in a localized region in the struts.
Abstract:
Methods and systems of fabricating a polymeric stent are disclosed herein. Methods are disclosed that include forming a polymeric tube using extrusion, radially deforming the formed tube so that the deformed tube comprises a target diameter, forming a stent from the deformed tube, and forming a stent from the deformed tube. The stent is formed by laser machining a stent pattern in the deformed tube with an ultra-short pulse laser. Disclosed methods further include crimping the stent on a support element, wherein a temperature of the stent during crimping is above an ambient temperature.
Abstract:
The present invention provides electrically conductive paper composites prepared from cellulose fibers modified to bind a conducting polymer to a surface of the cellulose fibers and mixing these with unmodified cellulose fibers and forming paper products from the composite. Conducting paper composites so formed were investigated for their conductivity and strength properties as a function of monomer dosage or percentage of modified fibers in the mixture and for the composites it was found that less monomer (i.e. conductive polymer) was needed to achieve the same conductivity obtained from conducting paper made from only the modified cellulose. A higher tensile strength was obtained with the composite conducting paper than was attained with conducting paper made from only the modified cellulose. The electrically conductive paper composites may also be prepared from cellulose fibers mixed with particulate fillers modified to bind a conducting polymer to a surface of the particulate fillers.
Abstract:
A formulation for generating an adhesion barrier that includes a plurality of particles or a dry powder that is made of a polymer combination of at least one biodegradable polymer and at least one water soluble polymer is disclosed. Methods of making and delivering the formulation are further disclosed. The formulation of particles is deposited on a surface of internal body tissue and the deposited formulation absorbs moisture from the tissue and forms a film over the surface. The film acts as an adhesion barrier by reducing or preventing adhesion of the surface to other body tissue.
Abstract:
A method for crimping a stent onto a balloon includes inflating a balloon with a fluid, sliding a stent over the inflated balloon, crimping the stent onto the balloon, and controlling the pressure inside the balloon below a given value when the stent is being crimped onto the balloon.
Abstract:
Disclosed is a method for fabricating a stent, the method comprising: positioning a polymeric tube inside a mold, wherein a high thermally conductive element covers at least a portion of the outer surface of the mold, the high thermally conductive element having a thermal conductivity that is greater than that of the mold; heating at least a portion of the mold; radially expanding the tube against the mold; and fabricating a stent from the radially expanded tube.
Abstract:
This invention discloses a method for determining the relationship of a Customer Edge Router (CE) with a Virtual Private Networking (VPN), which comprises: assigning in advance for each CE device at least one Route Target (RT) value to form the RT table of the CE, creating CE Route Communities (CERC) in the network management and assigning for each created CERC a Hub RT value and a Spoke RT value. The method further comprises: dividing the RT table of the current CE to be matched with a CERC into an import RT table and an export RT table according to the import/export attributes of the RT values, and determining whether the CE belongs to the designated CERC and whether the CE is a Hub CE or a Spoke CE in the CERC according to the RT values in the import RT table and export RT table obtained as well as the Hub RT value and Spoke RT value assigned to the designated CERC. With the method, the relationship between a CE and a CERC as well as the type of the CE in the CERC can be learned by a reverse deduction based on the RT tables known on the network so that VPN information can learn from the network management. Accordingly, less human effort is involved and cost of network maintenance greatly decreased.