| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e4387a6784875f8ab347274cea509f98
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5398cd3f1d27e096b1883d45feea5df2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14a5814322ef4614aa746655eb9f691e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e24e5998d739eee218bcaa55b7d43fba
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_de526e97a27991c9d1a71857471e6006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0a795af48f800ee3ebaad9a1f3784bab
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3d4506927e67f7ae4ef620bce0591eab |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29L2031-7532
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2027-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2-06 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C53-581
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-005 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F2-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C53-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-26 |
| filingDate |
1998-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4001e243675117d96abb169ca81a4013
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ab733aacfba473c48307d74b8360e92
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_86de0c54157c51ca44fa82ff89503239
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c05d3bdee052b506c7ffec93d76cb8f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1ab1535c0675cff34642360da8d9c421
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c2ec6309e34fe7b0e312a29251efc3b6 |
| publicationDate |
1999-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9907307-A1 |
| titleOfInvention |
Prosthesis for implantation and method for preparing the same |
| abstract |
The present invention relates to a hollow prosthesis for implantation which is made of a polymeric material such as polytetrafluoroethylene (PTFE) or copolymers comprising tetrafluoroethylene (TFE) with hexafluoropropylene or TFE with perfluorovinylpropyle ester, wherein the comonomer content does not exceed 2 %. The prosthesis structure is characterised in that it comprises two inter-connected and inter-penetrating matrices, wherein one matrix is made of a polymer in the shape of nodes connected by fibrils, while the other matrix defines an empty space whose elements are connected together into a three-dimensional network. The amount of nodes, fibrils and empty-space elements is not constant per volumetric unit and is essentially arranged in the shape of a strip (S) which is wound on a core (C) defining the shape of the prosthesis body. The shape, size and configuration of the core correspond to the organ to be replaced or a part thereof. The prosthesis body (B) may further include a plait (P) which is spirally applied and is made of polytetrafluoroethylene, a copolymer of tetrafluoroethylene and hexafluoropropylene, a copolymer of tetrafluoroethylene and perfluorovinylpropyle ester, a metal or a carbon fibre. This invention also relates to a method for preparing a PTFE prosthesis, wherein said method comprises the following steps: mixing the starting material in the form of powder with a binder so as to obtain a paste; pressing the paste and extruding it so as to obtain a profiled preform; removing the binder; and stretching the profiled preform in order to obtain the target porosity in the material forming the body. This method is characterised in that the profiled preform is reshaped into a material layer having a thickness of between 0.03 and 0.2 mm. The stretching process is carried out along one or two axes until the prosthesis body is shaped. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8911844-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9650479-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9644054-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2429407-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2429407-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9040646-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103977457-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9988506-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009258958-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9593223-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9193811-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7901446-B2 |
| priorityDate |
1997-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |