Title:
人工膝用の非対称な脛骨部品
Document Type and Number:
Japanese Patent JP5798190
Kind Code:
B2
Abstract:
An orthopaedic tibial prosthesis includes a tibial baseplate with an asymmetric periphery (200) which promotes proper positioning and orientation on a resected tibia, while also facilitating enhanced kinematics, soft-tissue interaction, and long-term fixation of the complete knee prosthesis. The asymmetric baseplate periphery is sized and shaped to substantially match portions of the periphery of a typical resected proximal tibial surface, such that proper location and orientation is evident by resting the baseplate on the tibia. The baseplate periphery provides strategically positioned relief and/or clearance between the baseplate periphery and bone periphery, such as in the posterior-medial portion to prevent deep-flexion component impingement, and in the anterior-lateral portion to avoid undue interaction between the anatomic iliotibial band and prosthesis components.
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Inventors:
Mary S. S. Wentoff
Jeffrey E. Bischoff
Raymond Sea Paris
Catherine M. Retigue
Jeffrey E. Bischoff
Raymond Sea Paris
Catherine M. Retigue
Application Number:
JP2013521855A
Publication Date:
October 21, 2015
Filing Date:
July 22, 2011
Export Citation:
Assignee:
Zimmer, Incorporated
International Classes:
A61F2/38
Domestic Patent References:
| JP9511668A | ||||
| JP2004254811A |
Foreign References:
| GB2253147A |
Attorney, Agent or Firm:
Atsushi Aoki
Tetsuro Shimada
Shinji Mitsuhashi
Kazuo Maejima
Hirose Shigeki
Masahiro Tahara
Tetsuro Shimada
Shinji Mitsuhashi
Kazuo Maejima
Hirose Shigeki
Masahiro Tahara