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  Patent History
  • Application
    EP 20070816327 2007-09-13
  • Publication
    EP 2077779 2009-07-15
Supplementary

published patent: SHAPE MEMORY LOCKING DEVICE FOR ORTHOPEDIC IMPLANTS

TitleSHAPE MEMORY LOCKING DEVICE FOR ORTHOPEDIC IMPLANTS
Priority Date2007-09-13 PCT/CN2007002710
2006-09-13 US 11/844237P
Inventors
Issue Date2009
Citation
EP Published Patent application EP 2077779. European Patent Office (EPO), Escapenet, 2009 How to Cite?
AbstractA mechanism to connect the supporting portions of orthopaedic implants such as in the head, spine, upper limb and lower limb and thereby prevent loosening and fretting at the implant interface of an orthopaedic implant construct has been developed based on shape memory effect and super-elasticity of shape memory materials such as nickel-titanium (nitinol or NiTi) shape-memory-alloy, without the use of typical threaded fastening technique. Advantages are conferred by making the entire device, not just connecting pieces, out of shape memory alloy and having shape memory effect and super-elasticity. Heating the memory head of the device will compress the connection portion without the use of an auxiliary device (e.g. coupling member) so that the connection portion can be completely clamped down by the memory head. Further advantages are provided through the use of a two-way shape memory effect in which the memory device can be closed or tightened by heating up the ambient temperature, and re-opened by cooling down the temperature.
Persistent Identifierhttp://hdl.handle.net/10722/176753
References

 

DC FieldValueLanguage
dc.date.accessioned2012-11-30T08:38:26Z-
dc.date.available2012-11-30T08:38:26Z-
dc.date.issued2009-
dc.identifier.citationEP Published Patent application EP 2077779. European Patent Office (EPO), Escapenet, 2009en_HK
dc.identifier.urihttp://hdl.handle.net/10722/176753-
dc.description.abstractA mechanism to connect the supporting portions of orthopaedic implants such as in the head, spine, upper limb and lower limb and thereby prevent loosening and fretting at the implant interface of an orthopaedic implant construct has been developed based on shape memory effect and super-elasticity of shape memory materials such as nickel-titanium (nitinol or NiTi) shape-memory-alloy, without the use of typical threaded fastening technique. Advantages are conferred by making the entire device, not just connecting pieces, out of shape memory alloy and having shape memory effect and super-elasticity. Heating the memory head of the device will compress the connection portion without the use of an auxiliary device (e.g. coupling member) so that the connection portion can be completely clamped down by the memory head. Further advantages are provided through the use of a two-way shape memory effect in which the memory device can be closed or tightened by heating up the ambient temperature, and re-opened by cooling down the temperature.en_HK
dc.titleSHAPE MEMORY LOCKING DEVICE FOR ORTHOPEDIC IMPLANTSen_HK
dc.typePatenten_US
dc.description.naturepublished_or_final_version-
dc.contributor.inventorYeung, KWKen_HK
dc.contributor.inventorLu, WWen_HK
dc.contributor.inventorLuk, KDKen_HK
dc.contributor.inventorCheung, KMCen_HK
patents.identifier.applicationEP 20070816327en_HK
patents.description.assigneeUNIV HONG KONG [CN]en_HK
patents.description.countryEuropean Patent Officeen_HK
patents.date.publication2009-07-15en_HK
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patents.date.application2007-09-13en_HK
patents.date.priority2007-09-13 PCT/CN2007002710en_HK
patents.date.priority2006-09-13 US 11/844237Pen_HK
patents.description.ccEPen_HK
patents.identifier.publicationEP 2077779en_HK
patents.relation.familyCN 101511291 (A) 2009-08-19en_HK
patents.relation.familyEP 2077779 (A1) 2009-07-15en_HK
patents.relation.familyUS 2008065074 (A1) 2008-03-13en_HK
patents.relation.familyWO 2008043254 (A1) 2008-04-17en_HK
patents.description.kindA1en_HK
patents.typePatent_publisheden_HK

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