Medical devices and applications of polyhydroxyalkanoate polymers

   
   

Devices formed of or including biocompatible polyhydroxyalkanoates are provided with controlled degradation rates, preferably less than one year under physiological conditions. Preferred devices include sutures, suture fasteners, meniscus repair devices, rivets, tacks, staples, screws (including interference screws), bone plates and bone plating systems, surgical mesh, repair patches, slings, cardiovascular patches, orthopedic pins (including bone filling augmentation material), adhesion barriers, stents, guided tissue repair/regeneration devices, articular cartilage repair devices, nerve guides, tendon repair devices, atrial septal defect repair devices, pericardial patches, bulking and filling agents, vein valves, bone marrow scaffolds, meniscus regeneration devices, ligament and tendon grafts, ocular cell implants, spinal fusion cages, skin substitutes, dural substitutes, bone graft substitutes, bone dowels, wound dressings, and hemostats. The polyhydroxyalkanoates can contain additives, be formed of mixtures of monomers or include pendant groups or modifications in their backbones, or can be chemically modified, all to alter the degradation rates. The polyhydroxyalkanoate compositions also provide favorable mechanical properties, biocompatibility, and degradation times within desirable time frames under physiological conditions.

Os dispositivos deram forma de ou incluindo polyhydroxyalkanoates biocompatible são fornecidos com as taxas controladas da degradação, preferivelmente menos de um ano sob circunstâncias physiological. Os dispositivos preferidos incluem suturas, prendedores da sutura, dispositivos do reparo do meniscus, rebites, aderências, grampos, parafusos (parafusos including da interferência), placas do osso e os sistemas do chapeamento do osso, o engranzamento cirúrgico, os remendos do reparo, os estilingues, os remendos cardiovascular, os pinos orthopedic (material de enchimento including do aumento do osso), as barreiras da adesão, stents, dispositivos guiados do tecido repair/regeneration, dispositivos articular do reparo do cartilage, guias do nervo, dispositivos do reparo do tendon, dispositivos atrial do reparo do defeito septal, remendos pericardial, agentes aumentando e de enchimento, veiam válvulas, scaffolds do marrow de osso, dispositivos da regeneração do meniscus, ligament e grafts do tendon, implants ocular da pilha, gaiolas spinal da fusão, substitutos da pele, substitutos dural, o osso substitutos do graft, passadores do osso, limpezas de ferida, e hemostats. Os polyhydroxyalkanoates podem conter aditivos, para ser dado forma das misturas dos monomers ou incluir grupos ou modificações pendant em suas espinhas dorsais, ou podem quimicamente ser modificados, tudo para alterar as taxas da degradação. As composições do polyhydroxyalkanoate fornecem também propriedades, o biocompatibility, e tempos mecânicos favoráveis da degradação dentro dos frames de tempo desejáveis sob circunstâncias physiological.

 
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