Title:
IMPLANT AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/009428
Kind Code:
A1
Abstract:
[Problem] To provide a medical implant of good biocompatibility. [Solution] Provided is an implant used for joining to biological tissue, including bone and teeth, the implant being made of a metal selected from titanium or titanium alloy, cobalt chromium alloy, and tantalum. A surface layer of the part of the implant that is joined to biological tissue, including bone and teeth, has a porous structure. The porous structure comprises a trunk hole that is formed in the through-thickness direction and has an opening on the joining face side, open holes constituted by branch holes formed extending from inner walls of the trunk hole in different directions with respect to the trunk hole, and an interior space that is formed in the through-thickness direction and does not comprise an opening on the joining face side, as well as tunnel connecting paths that connect the open holes and the interior space, and a tunnel connecting path that connects the open holes.
Inventors:
ITAKURA MASAHIKO (JP)
SHIMIZU KIYOSHI (JP)
UNO TAKAYUKI (JP)
KATAYAMA MASAHIRO (JP)
SHIMIZU KIYOSHI (JP)
UNO TAKAYUKI (JP)
KATAYAMA MASAHIRO (JP)
Application Number:
PCT/JP2018/025800
Publication Date:
January 10, 2019
Filing Date:
July 09, 2018
Export Citation:
Assignee:
DAICEL POLYMER LTD (JP)
International Classes:
A61F2/30; A61B17/58; A61C13/00; A61K6/04; A61L27/06; A61L27/50; A61L27/56
Foreign References:
| JPS63160662A | 1988-07-04 | |||
| JP2016078090A | 2016-05-16 | |||
| JPS5920030B2 | 1984-05-10 | |||
| JP2009254581A | 2009-11-05 | |||
| JP2014161520A | 2014-09-08 | |||
| JPS5326164B2 | 1978-07-31 | |||
| JP5860190B2 | 2016-02-16 | |||
| JP5774246B2 | 2015-09-09 | |||
| JPS571414B2 | 1982-01-11 | |||
| JP5890054B2 | 2016-03-22 | |||
| JP5959689B2 | 2016-08-02 | |||
| JP2016043413A | 2016-04-04 | |||
| JP2016036884A | 2016-03-22 | |||
| JP2016044337A | 2016-04-04 | |||
| JP2016078090A | 2016-05-16 | |||
| JP2016124024A | 2016-07-11 |
Other References:
MIZUTANI, MASAYOSHI ET AL.: "High functionalization of Dental Implant with laser fabrication", JOURNAL OF THE JAPAN SOCIETY FOR PRECISION ENGINEERING, vol. 81, no. 12, 2015, pages 1073 - 1077, XP055658963, ISSN: 1882-675x, DOI: 10.2493/jjspe.81.1073
MIZUTANI, MASAYOSHI: "Creation of bone tissue-compatible implant by means of nano pulse laser", REPORT OF GRANT-SUPPORTED RESEARCHES, THE ARMADA FOUNDATION, vol. 27, pages 158 - 163, ISSN: 2434-0723
ASRI, R.I.M. ET AL: "Corrosion and surface modification on biocompatible metals: A review", MATERIALS SCIENCE AND ENGINEERING C, vol. 77, August 2017 (2017-08-01), pages 1261 - 1274, XP085028532, ISSN: 0928-4931, DOI: 10.1016/j.msec.2017.04.102
See also references of EP 3649986A4
MIZUTANI, MASAYOSHI: "Creation of bone tissue-compatible implant by means of nano pulse laser", REPORT OF GRANT-SUPPORTED RESEARCHES, THE ARMADA FOUNDATION, vol. 27, pages 158 - 163, ISSN: 2434-0723
ASRI, R.I.M. ET AL: "Corrosion and surface modification on biocompatible metals: A review", MATERIALS SCIENCE AND ENGINEERING C, vol. 77, August 2017 (2017-08-01), pages 1261 - 1274, XP085028532, ISSN: 0928-4931, DOI: 10.1016/j.msec.2017.04.102
See also references of EP 3649986A4
Attorney, Agent or Firm:
FURUYA Satoshi (JP)
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