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Title:
JOINT REPLACEMENT DEVICE
Document Type and Number:
Japanese Patent JP2014221399
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an improved spinal arthroplasty device that avoids drawbacks and disadvantages of a known implant.SOLUTION: An artificial vertebral joint for interposition between a superior vertebra and an inferior vertebra comprises a pair of bilateral joint subcomponents. Each joint subcomponent includes a superior component 33a including a superior vertebra engaging surface and an inferior component 33b including an inferior vertebra engaging surface. Each joint subcomponent further includes a spacer 31 extending between the superior component and the inferior component. The spacer has a first modulus of elasticity and a second modulus of elasticity. The first modulus of elasticity transitions to the second modulus of elasticity with a gradient change.

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Inventors:
STEVEN CRAIG HUMPHREYS
SCOTT D HODGES
ERIC C LANGE
DANNY J BRADDOCK JR
HAI H TRIEU
Application Number:
JP2014142073A
Publication Date:
November 27, 2014
Filing Date:
July 10, 2014
Export Citation:
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Assignee:
HH SPINAL LLC
International Classes:
A61F2/44
Domestic Patent References:
JP3769022B22006-04-19
JP2005515002A2005-05-26
JP4105721B22008-06-25
JP2008517657A2008-05-29
JP2007517607A2007-07-05
JP2004167254A2004-06-17
JP2007519488A2007-07-19
JP2009506843A2009-02-19
Foreign References:
US20070016302A12007-01-18
WO2007028098A22007-03-08
Attorney, Agent or Firm:
Ono Shinjiro
Kobayashi 泰
Shigeo Takeuchi
Yamamoto 修
Miyamae 徹



 
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