Interfaz IM

Selección de patentes sobre biomateriales e ingeniería tisular publicadas en las últimas semanas:

US2008213574 – Amphiphilic Fibers and Membranes and Processes for Preparing Them - “… processes for preparing amphiphilic fibers and membranes from solutions comprising amphiphilic molecules. More particularly, the present invention relates to processes for preparing fibers and membranes from electrospinning solutions comprising amphiphilic molecules…”

US2008210125 – Stable cement composition for orthopaedic and dental use – ” The present invention relates to ceramic precursor powder compositions and chemically bonded ceramic (CBC) materials, Ca-aluminate and/or calcium silicate, and a composite biomaterial with prolonged shelf time of the precursor, suitable for orthopaedic applications with improved injectability…”

US2008213344 – Wound dressing and method for controlling severe, life-threatening bleeding – “… The wound dressing for controlling severe bleeding is formed of a biomaterial comprising chitosan, a hydrophilic polymer, a polyacrylic polymer or a combination thereof, The kind of severe, life-threatening bleeding contemplated by this invention is typically of the type not capable of being stanched when a conventional gauze wound dressing is applied with conventional pressure to the subject wound. The wound dressing being capable of substantially stanching the flow of the severe life-threatening bleeding from the wound by adhering to the wound site, to seal the wound, to accelerate blood clot formation at the wound site, to reinforce clot formation at the wound site and prevent bleed out from the wound site, and to substantially prohibit the flow of blood out of the wound site.”

WO2008106625 – Porous composite biomaterials and related methods – “Synthetic composite materials for use, for example, as orthopedic implants are described herein. In one example, a composite material for use as a scaffold includes a thermoplastic polymer forming a porous matrix that has continuous porosity and a plurality of pores. The porosity and the size of the pores are selectively formed during synthesis of the composite material. The example composite material also includes a plurality of a anisometric calcium phosphate particles integrally formed, embedded in, or exposed on a surface of the porous matrix. The calcium phosphate particles provide one or more of reinforcement, bioactivity, or bioresorption.”   “…More specifically, in one example, a composite material includes a polyetheretherketone (PEEK) or a polyetherketoneketone (PEKK) matrix reinforced with various volume fractions of hydroxyapatite (HA) whiskers (e.g., 20 or 40 volume percent), wherein the matrix is approximately between 70% and 90% porous. In another example, the porous matrix includes a biocompatible, microporous polymer cage reinforced with anisometric calcium phosphate particles and bone morphogenic protein (BMP) such as, for example, rhBMP-2, which can be dispersed or accommodated by the void spaces and/or pores of the example porous scaffold and/or exposed on the surface of the example porous scaffold.”

US2008207561 – Novel biomaterials and a method for making and using same – “…the composition comprising: a chitosan composition comprising a treated chitosan, a modified chitosan, a modified and treated chitosan, or a mixture thereof, where each chitosan exhibit changes in chemical, physical and/or performance properties or characteristics relative to a corresponding untreated chitosan, and a therapeutic agent selected from the group consisting of a prostaglandin, a prostamide and a mixture thereof, a non-steroidal anti-inflammatory drug (NSAID) and a mixture of NSAIDs, and a corticosteroid and a mixture of corticosteroids, where the chitosan composition is adapted to release a therapeutically effective amount of the therapeutical agent over a period of time.”