Abstract:
A tracker system (100) for use in image guided surgery is disclosed. The tracker system may couple to wet tissue and may include a navigation tracker (110) and a base pad (120) that couple to each other. The base pad may be fabricated from a plurality of nonwoven nanofibers (122). The base pad is configured to couple to body tissue of a patient via at least one of adsorption, hydration equilibrium, and macromolecular interpenetration.
Abstract:
The present application relates to injectable tissue products and their production and use thereof. The tissue products include a group of acellular tissue matrix particles, a bioadhesive, and a biocompatible polymer. The tissue products may be used to treat hernia defects.
Abstract:
The present disclosure provides meshed acellular dermal tissue matrix compositions, devices, and methods of use. The meshed devices can be used in conjunction with a variety of implants such as breast implants or tissue expanders.
Abstract:
An optical method for determining collagen bundle orientation in bovine pericardium includes the use of a system having a light source which transmits light through a first polarizer, a tissue for making a prosthetic valve leaflet, and a second polarizer, where the light then illuminates a detector plate. The light that illuminates the detector plate is used to determine the orientation of collagen fiber bundles. The orientation of the collagen fiber bundles is used to determine where to cut the leaflet edges.
Abstract:
The present invention relates to a drug delivery system comprising a stack of five layered polymer films and a drug loaded into each of the five layered polymer films. The polymer film having a size in the range of 2 mm to 5 mm. The drug delivery system of the present invention is used for the management of post-operative complications such as pain, infection, inflammation and uncontrolled bleeding.
Abstract:
Silicone polyurea block copolymers are prepared by copolymerizing: (a) a diamine composition that includes a polyethylene glycol diamine, and optionally, a dipiperidyl alkane; (b) a monofunctional silicone isocyanate; and (c) a diisocyanate. Compositions useful as passivating coatings comprising the block copolymer are also provided, and substrates coated with the compositions. Methods of preparing and using the compositions are also described.
Abstract:
The present invention discloses a multi-stage process for yielding bioabsorbable stents with enhanced shelf life. The process includes annealing a scaffold obtained from the deformed tube, coating the annealed scaffold in low humidity environment, crimping the coated scaffold, packaging the scaffold and then sterilizing the crimped scaffold. The annealing includes heating the scaffold at 100-150° C in vacuum for 10-24 hrs, and cooling the heated scaffold in the presence of an inert gas for 3-6 hrs to ambient temperature to form an annealed scaffold. The annealed scaffold has molecular weight M w range of 320000 g/mol to 410000, M n between 190000-250000 g/mol and possesses narrow molecular weight distribution of poly dispersity index between 1.5 to 1.9. Each of the steps of the multi-stage process results in enhanced shelf-life of the bioabsorbable stents.
Abstract:
The present disclosure relates generally to techniques for capturing cancer cells and, more particularly, to techniques for capturing metastatic cancer cells in vivo.
Abstract:
A biocidally active polymer composition formed from an oligomeric or polymeric additive and a thermoplastic polyurethane polymer is disclosed. The biocidally active polymer may further include a non-fouling and/or non-thrombogenic polymer. The biocidally active polymer provides biocidally active properties, and may also provide non-fouling and/or non-thrombogenic properties. The composition is particularly useful in articles and materials for medical applications.