| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0a49836259fc49413377e142f102ffab |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B2535-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2002-072
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2027-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B2262-0253 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C48-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-322
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L31-048
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B1-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2-07
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-507
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C48-022 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L31-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F2-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B27-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B27-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C48-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-50 |
| filingDate |
1998-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4876acb1f882e77142a0bbbd01f050c1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d0087b3fa84248fac8955986333e71fe
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_421d91d68f7a71659e85e9e8f6acfc2d |
| publicationDate |
2005-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1557258-A2 |
| titleOfInvention |
Radially expandable tubular polytetrafluoroethylene grafts and method of making same |
| abstract |
The present invention relates to a method of making a laminated expandablenpolytetrafluoroethylene (PTFE) elongated member that is radially expandable to at least 7ntimes its unexpanded diameter by a pressure of less than 6 atmospheres, the methodncomprising the steps of: selecting a PTFE material with an average molecular weight ofnabout 120 million and an average particle size in a range of from about 350 to about 759nmicrons (µm); providing a mixture of the PTFE and a lubricant; compressing the mixturento form a compressed extrusion billet; extruding the billet as extruded strands; forming thenextruded strands into tube lengths; expanding each tube length at a strain rate in a range ofnfrom about 10 %/sec to 200%/sec; contacting each tube length with at least one othernunsintered elongate PTFE extrusion that has a different diameter from said tube length tonform nesting elongated members; and sintering the nested elongated members. |
| priorityDate |
1997-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |