Abstract:
A polymeric material includes a polyisobutylene-polyurethane block copolymer. The polyisobutylene-polyurethane block copolymer includes soft segments, hard segments, and end groups. The soft segments include a polyisobutylene diol residue. The hard segments include a diisocyanate residue. The end groups are bonded by urea bonds to a portion of the diisocyanate residue. The end groups include a residue of a mono-functional amine.
Abstract:
A composite lumen includes an extruded tube of a composite including a poly(glycerol sebacate) (PGS) matrix mixed with a PGS thermoset filler. The composite lumen also includes an overbraid structure overlying an outer surface of the extruded tube. A method of forming a composite lumen includes extruding a PGS tube of a composite including a PGS matrix mixed with a PGS thermoset filler. The method also includes applying an overbraid structure over an outer surface of the extruded tube.
Abstract:
Die vorliegende Erfindung betrifft Polymerrohre und bevorzugt bioresorbierbare Polymerrohre hergestellt aus mindestens einem Mehrkomponentenfaden, wobei der Mehrkomponentenfaden einen Durchmesser von ≤ 200µm aufweist sowie Verfahren zur Herstellung dieser Polymerrohre, welche insbesondere für die Herstellung von Stents geeignet sind. Der aufgewickelte mindestens eine Mehrkomponentenfaden kann zu einem porenfreien massiven Polymerrohr vereinigt werden ohne Verlust der Molekülorientierung.
Abstract:
In one aspect, compositions and wound dressings are described herein. In some embodiments, a composition or wound dressing described herein comprises a mesh formed from a plurality of biodegradable polymer fibers; a first active agent dispersed in the biodegradable polymer fibers; a plurality of biodegradable polymer particles disposed in the mesh; and a second active agent dispersed in the biodegradable polymer particles. The particles can be disposed within the interiors of the fibers of the mesh or between the fibers of the mesh. In another aspect, a composition or wound dressing described herein comprises a first perforated mesh formed from a first plurality of biodegradable polymer fibers; and a second perforated mesh formed from a second plurality of biodegradable polymer fibers, wherein the second perforated mesh is disposed on the first perforated mesh in a stacked configuration and the first and second perforated meshes have different degrees of perforation.
Abstract:
Described are transdermal drug delivery compositions comprising amphetamine, methods of making transdermal drug delivery compositions comprising amphetamine, and therapeutic methods of using them. In specific embodiments, the compositions are free of components with moieties that are reactive with amphetamine. In specific embodiments, the compositions are manufactured using solvents free of components with moieties that are reactive with amphetamine. Therapeutic methods using the compositions also are described.
Abstract:
A tissue thickness compensator (21020) can comprise a plurality of layers. Various embodiments are disclosed herein for manufacturing a tissue thickness compensator. In certain embodiments, a tissue thickness compensator can comprise at least one medicament tube, capsule, and/or packet contained therein.
Abstract:
Provided herein is a composite, comprising: a polymer host selected from the group consisting of low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), and polypropylene (PP), polyurethane, polycaprolactone (PCL), polydimethylsiloxane (PDMS), polymethylmethacrylate (PMMA), and polyoxymethylene (POM); and a guest molecule comprising hyaluronic acid; wherein the guest molecule is disposed within the polymer host, and wherein the guest molecule is covalently bonded to at least one other guest molecule. Also provided herein are methods for forming the composite, and blood-contracting devices made from the composite, such as heart valves and vascular grafts.
Abstract:
A composite implant comprising an injectable matrix material which is flowable and settable, and at least one reinforcing element for integration with the injectable matrix material, the at least one reinforcing element adding sufficient strength to the injectable matrix material such that when the composite implant is disposed in a cavity in a bone, the composite implant supports the bone.
Abstract:
La présente invention concerne une matrice composite comprenant une partie textile de renfort dont les deux faces sont recouvertes à au moins 90 % de leurs surfaces respectives par au moins une première couche comprenant au moins une macro molécule résorbable et une teneur en collagène allant de 50 à 100 % en poids par rapport au poids total de la première couche, une prothèse comprenant une telle matrice et un procédé de préparation de ladite matrice.