Title:
SET SCREW FOR ANTIBACTERIAL DEVICE TO BE IMPLANTED IN VIVO
Document Type and Number:
WIPO Patent Application WO/2017/150535
Kind Code:
A1
Abstract:
Provided is a set screw for antibacterial device to be implanted in vivo, comprising a set screw main body having a threaded groove provided on the outer periphery thereof and a hole part provided on the head thereof, a cap having a leg part that fits into the hole part of the set screw main body, wherein the surface of at least the hole part of the set screw main body and the surface of at least the leg part of the cap include a first material and a second material having a potential difference, the first material includes an antibacterial metal, the second material is more precious than the first material, when used implanted in vivo an electrical circuit is constituted between the first material and the second material, ions of the antibacterial metal are eluted from the first material in the presence of an electrolyte, generating a bactericidal activity on the surface and/or in the vicinity of the surface of the first material.
Inventors:
SUGINO ATSUSHI (JP)
FUKUZAKI SATOSHI (JP)
FUKUZAKI SATOSHI (JP)
Application Number:
PCT/JP2017/007807
Publication Date:
September 08, 2017
Filing Date:
February 28, 2017
Export Citation:
Assignee:
MEDTRONIC SOFAMOR DANEK CO LTD (JP)
International Classes:
A61B17/58; A61L27/04; A61L27/40
Domestic Patent References:
| WO2015148800A1 | 2015-10-01 |
Foreign References:
| JP2001258894A | 2001-09-25 | |||
| US20120123485A1 | 2012-05-17 | |||
| JP2013528411A | 2013-07-11 | |||
| JPH08506027A | 1996-07-02 | |||
| JP5175185B2 | 2013-04-03 | |||
| JP2002536048A | 2002-10-29 |
Other References:
See also references of EP 3424450A4
Attorney, Agent or Firm:
ONO, Shinjiro et al. (JP)
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