http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013044767-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c5a2ff1533dee5993c4504987cf43302 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4bb34e081248945c36a647c7af54017e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L2430-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B22F3-1121 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-047 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-56 |
| filingDate | 2012-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_337f8b62e5672f16288711fa85d61c9a |
| publicationDate | 2013-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2013044767-A1 |
| titleOfInvention | Medical porous tantalum material for dental bone replacement and preparation method therefor |
| abstract | A medical porous tantalum material for dental bone replacement and preparation method therefor, produced as follows: mixing tantalum powder, polyvinyl alcohol, and sodium bicarbonate into a powder mixture, press-forming the powder mixture into an organic foamed body, then degreasing, sintering, cooling, and performing a heating process. The pressure used during the press-forming is 50 to 100 Mpa. The diameter of the produced medical porous tantalum material pores is 30 to 50 μm. The porosity is 30% to 38%. The porous tantalum method of the present invention uses a purely physical molding method, so that the final porous tantalum material contains low concentration of impurities, thereby effectively enhancing the biocompatibility and biosafety. Measurements show that the impurity concentration is lower than 0.2%. The density reaches 10.34 to 11.67 g/cm 3 , the porosity reaches 30% to 38%, and the pore diameter reaches 30 to 50 μm. The elastic modulus reaches 4.5 to 6.0 Gpa, the bending strength reaches 120 to 130 Mpa, and the compressive strength reaches 100 to 140 Mpa. The porous tantalum of the present invention is applicable as a medical implant material for dental bone replacement. |
| priorityDate | 2011-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.