| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_482185864821a988c17676ccddc3a351 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2027-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S623-901 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L31-048 |
| 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/B29C55-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L29-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-18 |
| filingDate |
2001-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_34e240cad95a8ea7b87b93b8e4545eb5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_80fafd4e0c1e173496dcaa6310330816
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ad6d92cfe59c0e30be0e75176f50b962
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af214d08f20d8b364ea4bfb0e7a8ac8b |
| publicationDate |
2003-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1341483-A1 |
| titleOfInvention |
High density microwall expanded polytetrafluoroethylene tubular structure |
| abstract |
A high density microwall ePTFE structure with increased radial strength and suture retention and a method for producing the same. The inventive material also achieves a sizeable reduction in the wall thickness and porosity. The method of manufacture involves the manipulation of a standard extruded ePTFE graft. The graft is placed within a restraining tube and is balloon dilated (20) to approximately four times its original diameter, after which it is placed onto a like-sized mandrel (30) that provides an interference fit. This loaded mandrel is placed into a calendering device (40) where the entire graft wall is moved between metal plates until sufficiently calendered. The loaded mandrel is then placed into a heated furnace or oven (80) at a temperature above the crystalline melt point of PTFE to lock the changes into the microstructure. The final product has the desired characteristics of reduced wall-thickness, high density, above-average radial strength and enhanced suture retention. |
| priorityDate |
2000-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |