23-07-2020 дата публикации
Номер: US20200229954A1
This disclosure relates to scaffolds made of a braid of bioabsorbable polymeric fibers for implantation within a lumen of a mammalian body and, in particular, to such scaffolds that are configured to divert blood flow from a pathology associated with a blood vessel. 1. A device , comprising a resiliently deformable tubular body for positioning in a body lumen defined by a body wall , the tubular body comprising a braid of interwoven bioabsorbable polymeric fibers , wherein the tubular body comprises at least 38 polymeric fibers.2. The device of claim 1 , wherein claim 1 , when the device is in an expanded formation claim 1 , the braid has a porosity in the range of about 5% to about 80%.3. The device of claim 1 , wherein claim 1 , when the device is in an expanded formation claim 1 , the braid has a porosity in the range of about 60% to about 80%.4. A device claim 1 , comprising a resiliently deformable tubular body for positioning in a body lumen defined by a body wall claim 1 , the tubular body comprising a braid of interwoven bioabsorbable polymeric fibers claim 1 , wherein claim 1 , when the device is in an expanded formation claim 1 , the braid has a porosity in the range of about 60% to about 80%.5. The device of claim 4 , wherein the tubular body comprises at least 38 polymeric fibers.6. The device of claim 1 , wherein the bioabsorbable polymeric fibers have a diameter in the range of about 30 μm to about 80 μm.7. The device of claim 1 , wherein tubular body further comprises a visualization aid.8. The device of claim 7 , wherein the visualization aid comprises at least one wire comprising a radio-opaque material claim 7 , wherein each wire is interwoven with the plurality of bioabsorbable polymeric fibers to form part of the braid.9. The device of claim 1 , wherein the tubular body comprises means for facilitating and/or maintaining radial and/or axial expansion of the tubular body in the body lumen.10. The device of claim 9 , wherein the means for ...
Подробнее