摘要:
The present invention relates to absorbable block copolymers with improved characteristics including thermal stability, molecular weight consistency, inherent viscosity retention following melt extrusion, and fibers made from the polymers exhibit increased strength.
摘要:
A fiber-reinforced composite ring for the controlled release of at least one bioactive agent includes a biocompatible matrix reinforced with absorbable/biodegradable fibers capable of providing the mechanical properties needed for inserting and maintaining the ring in a body cavity for a desired period of time. Such ring system as can be used for the intravaginal, intraperitoneal, and subcutaneous delivery of at least one bioactive agent, including those used as contraceptives, antimicrobial agents, and/or antiviral agents, as well as those for the treatment of cancer.
摘要:
Radiopaque, iodinated, absorbable polyesters, polyester urethanes, and polyether-ester-urethanes with and without inorganic iodide micro-/nanoparticles dispersed or solubilized therein, and composite inorganic iodide micro-/nanoparticles in an absorbable polyester, polyester-urethane, polyester-ester, or polyether-ester urethane matrix are employed in medical devices and therapeutic compositions.
摘要:
Bioactive, hydroforming luminal liner compositions are formed of high molecular weight crystalline, absorbable copolyesters dissolved in a liquid derivative of a polyether glycol that undergoes transformation into a tissue-adhering, resilient interior cover or liner for the controlled release of its bioactive payload at clinically compromised conduits in humans as in the case of bacteria- and yeast-infected vaginal canals, esophagi, and arteries following angioplasty.
摘要:
Biostable, multipurpose, microbicidal intravaginal devices in the form of rings, ringed-meshes, sponges, or diaphragms for use by women and condoms for use by male partners are provided, wherein each of the devices contains a drug effective in treating a particular vaginal infection, while further exhibiting at least one additional function selected from the group dealing with non-hormonal contraception, management of sexually transmitted diseases, viral infections, and retroviral infections as well as the treatment of cervical cancer.
摘要:
Bioactive, hydroforming luminal liner compositions are formed of high molecular weight crystalline, absorbable copolyesters dissolved in a liquid derivative of a polyether glycol that undergoes transformation into a tissue-adhering, resilient interior cover or liner for the controlled release of its bioactive payload at clinically compromised conduits in humans as in the case of bacteria- and yeast-infected vaginal canals, esophagi, and arteries following angioplasty.
摘要:
Bioactive liquid formulations are formed of combinations of absorbable, segmented aliphatic polyurethane compositions and liquid polyether for use as vehicles for the controlled release of at least one active agent for the conventional and unconventional treatment of different forms of cancer and the management of at least one type of bacterial, fungal, and viral infection.
摘要:
A biocompatible, polymeric composition is disclosed. The composition comprises a base polymer comprising (i) a prepolymer comprising para-dioxanone (PDO) and trimethylene carbonate (TMC); and (ii) an end-graft polymer chain comprising a polylactone. Also disclosed are a method for treating bleeding from bone or bony structures using the composition, a method for filling a void or correct a defect in a bone using the composition, and a method for producing the biocompatible, polymeric composition of the present application.
摘要:
Absorbable, essentially non-absorbable, and non-absorbable crystalline, amphiphilic, block/graft copolymeric compositions exhibit an inherent viscosity of at least 0.5 dL/g, a heat of fusion of at least 10 J/g and undergo swelling in the biological environment due to a water up-take of at least 10 percent of original dry mass. These compositions are designed for use in swellable surgical sutures, coatings of medical devices, and carriers for the delivery of bioactive agents.
摘要:
Biomedical and tissue engineering devices, such as surgical sutures and microporous scaffolds, respectively, which undergo swelling and increase in dimensions when placed in aqueous environments such as living tissues, are produced by the melt-spinning or electrostatic spinning into strong monofilament and multifilament yarns or microfibrous fabrics, respectively. Such devices are formed from especially high molecular weight crystalline polyether-esters having a minimum inherent viscosity of 0.8 dL/g and heat of fusion of at least 5 J/g, wherein the polyether-esters are made by grafting to a polyester component a polyether glycol component having a minimum molecular weight of about 11 kDa with at least one cyclic monomer.