Telemetric tibial tray

Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone

Reexamination Certificate

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C623S020320, C600S587000

Reexamination Certificate

active

07470288

ABSTRACT:
A telemetric tibial tray includes a lower plate that defines a plurality of cylindrical transducer cavities having circular load diaphragms. An upper plate is attached to the lower plate through support posts projecting from the load diaphragms. The support posts have a circular cross-section and a diameter of about 5.0 mm. The lower plate further defines wiring channels communicating between the transducer cavities and a central cavity housing the circuit board for the telemetric tray. The wiring channels are arranged at a 45 degree angle relative to the sagittal plane of the knee joint in order to reduce the effects of the wiring channel intersection on the strain sensitivity of the tray. Each transducer cavity includes a radial strain gage array with four pairs of radially aligned strain gages, each pair aligned at a 45 degree angle relative to the sagittal plane of the knee joint. Each pair of strain gages includes an inner gage positioned at the point of maximum positive micro-strain across the diaphragm when loaded, and an outer gage positioned at the point of maximum negative micro-strain, to thereby increase the differential strain measured by the gages and increase the strain sensitivity of the tibial tray.

REFERENCES:
patent: 3456226 (1969-07-01), Vick
patent: 4024588 (1977-05-01), Janssen et al.
patent: 4045825 (1977-09-01), Stroot
patent: 4675670 (1987-06-01), Lalonde et al.
patent: 4950986 (1990-08-01), Guerrero
patent: 5113869 (1992-05-01), Nappholz et al.
patent: 5197488 (1993-03-01), Kovacevic
patent: 5300120 (1994-04-01), Knapp et al.
patent: 5360016 (1994-11-01), Kovacevic
patent: 5365799 (1994-11-01), Okada
patent: 5376128 (1994-12-01), Bozeman
patent: 5395033 (1995-03-01), Byrne et al.
patent: 5458655 (1995-10-01), Bozeman
patent: 5465619 (1995-11-01), Sotack et al.
patent: 5470354 (1995-11-01), Hershberger et al.
patent: 5480454 (1996-01-01), Bozeman
patent: 5518008 (1996-05-01), Cucchiaro et al.
patent: 5609643 (1997-03-01), Colleran et al.
patent: 5769875 (1998-06-01), Peckham et al.
patent: 5776171 (1998-07-01), Peckham et al.
patent: 5780749 (1998-07-01), Okada
patent: 5831430 (1998-11-01), Pfanstiehl et al.
patent: 5935171 (1999-08-01), Schneider et al.
patent: 5954758 (1999-09-01), Peckham et al.
patent: 6026328 (2000-02-01), Peckham et al.
patent: 6155267 (2000-12-01), Nelson
patent: 6163725 (2000-12-01), Peckham et al.
patent: 6228900 (2001-05-01), Shen et al.
patent: 6245109 (2001-06-01), Mendes et al.
patent: 6272379 (2001-08-01), Fischell et al.
patent: 6281264 (2001-08-01), Salovey et al.
patent: 6281679 (2001-08-01), King et al.
patent: 6332089 (2001-12-01), Acker et al.
patent: 6400989 (2002-06-01), Eckmiller
patent: 6402689 (2002-06-01), Scarantino et al.
patent: 6442413 (2002-08-01), Silver
patent: 6447448 (2002-09-01), Ishikawa et al.
patent: 6454781 (2002-09-01), Witt et al.
patent: 6473652 (2002-10-01), Sarwa et al.
patent: 6498944 (2002-12-01), Ben-Haim et al.
patent: 6506216 (2003-01-01), McCue et al.
patent: 6507189 (2003-01-01), Woolsey et al.
patent: 6558229 (2003-05-01), Kimura et al.
patent: 6563308 (2003-05-01), Nagano et al.
patent: 6573706 (2003-06-01), Mendes et al.
patent: 6583630 (2003-06-01), Mendes et al.
patent: 6679920 (2004-01-01), Biedermann et al.
patent: 6689056 (2004-02-01), Kilcoyne et al.
patent: 6890303 (2005-05-01), Fitz
patent: 6917831 (2005-07-01), Bloemer et al.
patent: 7179295 (2007-02-01), Kovacevic
patent: 2001/0000187 (2001-04-01), Peckham et al.
patent: 2002/0133175 (2002-09-01), Carson
patent: 2002/0147455 (2002-10-01), Carson
patent: 2003/0069644 (2003-04-01), Kovacevic et al.
patent: 2004/0019384 (2004-01-01), Kirking et al.
patent: 2004/0034355 (2004-02-01), Govari et al.
patent: 2004/0243148 (2004-12-01), Wasielewski
patent: WO 00/65981 (2000-11-01), None
patent: WO 2005-055871 (2005-06-01), None
patent: WO 2005/055871 (2005-06-01), None
Seedhom et al.,A Technique for the Study of Geometry and Contact in Normal and Artificial Knee Joints, 1972, Wear—Elsevier Sequoia S.A. Lausanne—Printed in the Netherlands, pp. 189-199.
Troyk et al.,Design and Implementation of an Implantable Goniometer, IEEE Transactions on Biomedical Engineering, Feb. 1986,pp. 215-222, vol. BME-33, No. 2.
Selvik,Roentgen stereophotogrammetry A method for the study of the kinematics of the skeletal system. Acta Orthopaedica Scandinavica, 1989, pp. 1-51, Supplementum No. 232, vol. 60, Munksgard Copenhagen.
Graichen et al.,Four-Channel Telemetry System for In Vivo Measurement of Hip Joint Forces, J. Biomed. Eng., Feb. 1991, pp. 370-374, vol. 13.
Pavelka et al.,Correlation between knee roentgenogram changes and clinical symptoms in osteoarthritis; Rev. Rhum. Mal. Osteoartic., Apr. 1992, pp. 553-559, 59 (9).
Graichen et al.,Inductively Powered Telemetry System for In Vivo Measurement with Orthopaedic Implants, Biotelemetry XIII, Mar. 26-31, 1995—Williamsburg, VA, pp. 75-80.
Conrozier et al.,Quantitative radiography in osteoarthritis: Computerized measurement of radiographic knee and hip joint spaceBaillière's Clinical Rheumatology, Aug. 1996, pp. 429-433, vol. 10, No. 3, Copyright © 1996, by Baillière's Tindall.
Karrholm et al;Radiosterometry of Hip Prostheses Review of Methodology and Clinical Results, Clinical Orthopaedics and Related Research, 1997, pp. 94-110, No. 344.
Ilchmann,Thesis Radiographic assessment of cup migration and wear after hip replacement, Acta Orthopaedica Scandinavica, Oct. 1997, pp. 1-27, vol. 68, Supplementum No. 276.
Lanyon et al;Radiographic assessment of symptomatic knee osteoarthritis in the community: definitions and normal joint space. Ann Rheum Dis, Aug. 1998, pp. 595-601, No. 57.
Vrooman et al.,Fast and accurate automated measurements in digitized stereophotogrammetric radiographs. Journal of Biomechanics, 1998, pp. 491-498, 31.
Önsten et al;Wear in uncemented porous and cemented polyethelene sockets, A Randomised, Radiosterometric Study, The Journal of Bone and Joint Surgery, Mar. 1998, pp. 345-350, 80(2).
Johnson et al;Implantable Transducer for Two-Degree of Freedom Joint Angle Sensing. IEEE Transactions on Rehabilitation Engineering, Sep. 1999, pp. 349-359, vol. 7, No. 3.
Miller et al.,Molecule-Based Magnets—An Overview. MRS Bulletin, Nov. 2000, pp. 21-28.
Ryd et al.,Methods for determining the accuracy of radiostereometric analysis(RSA), Acta Orthopaedic Scandinavica, 2000, pp. 403-408, 71 (4). © Taylor & Francis 2000.
Cicuttini et al.,Tibial and femoral cartilage changes in knee osteoarthritis, Ann Rheum Dis, Oct. 2001; pp. 977-980, 60.
Hyldahl et al.,Does Metal Backing Improve Fixation of Tibial Component in Unicondylar Knee Arthroplasty? A Randomized Radiosterometric Analysis, The Journal of Arthroplasty, 2001, pp. 174-179, vol. 16 No. 2.
Sychertz et al.,Effect of Radiographic Quality on Computer-Assisted Head Penetration Measurements, Clinical Orthopaedics and Related Research, 2001, pp. 150-158, No. 386.
Bhadra et al.,Implementation of an Implantable joint-angle TransducerJournal of Rehabilitation Research and Development, May/Jun. 2002, pp. 411-422, vol. 39, No. 3.
Bragdon et al.,Experimental assessment of precision and accuracy of radiostereometric analysis for the determination of polyethylene wear in a total hip replacement model, Journal of Orthopaedic Research, 2002, pp. 688-695, © 2002 Orthopaedic Research Society, Published by Elsevier Science Ltd.
Hilliquin et al.,Quantitative assessment of joint space width with an electronic caliper. Osteoarthritis and Cartilage, 2002, pp. 542-546, 10.
European Search Report for European Application No. 05251832.1-2310 PCT/ dated Aug. 5, 2004, 4 pages.

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