Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Reexamination Certificate
2005-04-26
2005-04-26
McDermott, Corrine (Department: 3738)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
C606S092000, C606S099000
Reexamination Certificate
active
06884264
ABSTRACT:
The present invention provides a system and a method for reducing pores, or air pockets, that form at the interface between the material used to attach or adhere the surface of a component, such as a prosthesis, to a site.A preferred embodiment of the invention includes an actuator that controls a coupler which transmits energy to a prosthesis being inserted into a material to reduce porosity at an interface between the prosthesis and the material.The system of the present invention can include an oscillating hand-held device that vibrates the stem component of an orthopedic prosthesis at a particular frequency and amplitude. The device is typically held by the hand of the surgeon, who guides the vibrating prosthesis into the cement-filled medullary cavity.
REFERENCES:
patent: 4837279 (1989-06-01), Arroyo
patent: 4977115 (1990-12-01), Klein et al.
patent: 5037442 (1991-08-01), Wintermantel et al.
patent: 5045054 (1991-09-01), Hood et al.
patent: 5284484 (1994-02-01), Hood et al.
patent: 5382251 (1995-01-01), Hood et al.
patent: 5456686 (1995-10-01), Klapper et al.
patent: 5480450 (1996-01-01), James et al.
patent: 5536266 (1996-07-01), Young et al.
patent: 5681872 (1997-10-01), Erbe
patent: 5885495 (1999-03-01), Ibar
patent: 5913899 (1999-06-01), Barrett et al.
patent: 6005163 (1999-12-01), Tepic
patent: 6136035 (2000-10-01), Lob et al.
patent: 6139584 (2000-10-01), Ochoa et al.
patent: 6165177 (2000-12-01), Wilson et al.
patent: 6203747 (2001-03-01), Grunitz
patent: 6210030 (2001-04-01), Ibar
patent: 2277448 (1994-11-01), None
patent: WO 90 04953 (1990-05-01), None
Bundy, K. J, & Penn R. W., “The effect of surface preparation on metal/bone cement interfacial strength,”J. of Biomedical Research, vol. 21, 773-805 (1987).
Lewis, G., “Effect of Mixing Method and Storage Temperature of Cement Constituents on the Fatigue and Porosity of Acrylic Bone Cement,” University of Memphis, Memphis, Tennessee, Mar. 1998.
Verdonschot N., & Huiskes, R., “The Effects of Cement-Stem Debonding in THA on the Long-Term Failure Probability of Cement,”J. Biomechanics, vol. 30, No. 8, pp. 795-802, 1997.
Lewis, G., “Properties of Acrylic Bone Cement: State of the Art Review,” The University of Memphis, Memphis, Tennessee, Feb. 1997.
Schmalzried, T. P., et al., “The Significance of Stem-Cement Loosening of Grit-Blasted Femoral Components,”Orthopedics, vol. 23, No. 11, Nov. 2000.
Gilbert, J. L., et al., “A theoretical and experimental analysis of polymerication shrinkage of bone cement: A potential major source of porosity,” accepted Feb. 16, 2000.
James, S.P., et al., “A fractographic investigation of PMMA bone cement focusing on the relationship between porosity reduction and increased fatigue life,”Journal of Biomedical Materials Research, vol. 26, 651-662, (1992).
Harris, J. & Wilkinson, W.L., “Non-newtonian Fluid,” McGraw-Hill Encyclopedia of Physics, Second Ed., McGraw Hill, New York, p 856-858 (1993).
Howmedica Products: Partnership™ System, Merdian ™ PA Femoral Component, [retrieved on Mar. 17, 2002]. Retrieved from the Internet <URL:http://www.ostenoics.com/howmedica/products/frames/prod2f.htm>.
Howmedica Products: Exeter Total Hip System, Unique Stem Design, [retrieved on Mar. 17, 2002]. Retrieved from the Internet <URL:http://www.ostenoics.com/howmedica/products/frames/prod2p2b.htm>.
Howmedica Products: Exeter Total Hip System, Increased Compression at Stem/Cement Interface, Cement-An Integral Solution, [retrieved on Mar. 17, 2002]. Retrieved from the Internet <URI:http://www.ostenoics.com/howmedica/products/frames/prod2p2d.htm>.
Material Safety Data Sheet, [retrieved on Mar. 17, 2002]. Retrieved from the Internet <URL:http://www.ostenoics.com/hcp/pages/msds2000.html>.
Stryker® Howmedica Osteonics, Facts for Operating Room Nurses, History, [retrieved on Mar. 17, 2002]. Retrieved from the Internet <URL:http://www.osteonics.com/hcp/or_nurse/pages/history.html.>.
Stryker® Howmedica Osteonics, The Formula for Success, 40 Years of Clinical Success, [retrieved on Mar. 14, 2002]. Retrieved from the Internet <URL:http://www.osteonics.com/simplex_us/pages/intro.html.>.
Class II Special Controls Guidance Document: Polymethylmethacrylate (PMMA) Bone Cement 510(k)s; Final Guidance for Industry, Center for Devices and Radiological Health, Aug. 2, 2001.
Verdonschot, N., Tanck, E., Huiskes, R., “Effects of prosthesis surface roughness on the failure process of cemented hip implants after stem-cement debonding,” J. Biomed. Mater. Res., 42, 554-559 (1998).
Beaumont, P.W.R., “The strength of acrylic bone cements and acrylic cement-stainless steel interfaces,”J. Mater. Sci., 12:1845-1852 (1977).
Bishop, N.E., et al., “Porosity Reduction in Bone Cement at the Cement-Stem Interface,”J. Bone and Joint Surg., 78-B(3):349-356 (1996).
Crowninshield, R.D., et al., “Cement strain measurement surrounding loose and well-fixed femoral component stems,”J. Biomed. Mater. Res., 17:819-828 (1983).
Davies, J.P., et al., Strength of Cement-Metal Interfaces in Fatigue: Comparison of Smooth, Porous and Precoated Specimens;Clin. Mater., 12:121-126 (1993).
Davies, J.P., et al., “Effect of Interfacial Porosity on the Torsional Strength of the Cement-Metal Interface,”Proc. 41stAnn. Meeting ORS., 713 (1995).
Gruen, T.A., et al., “Modes of Failure of Cemented Stem-type Femoral Components,”Clin. Orthop. Relat. Res. 141:17-27 (1979).
Hampton, S.J., et al., “Stresses Following Stem Cement Bond Failure in Femoral Total Hip Implants,”Trans. 27thAnn. Orthop. Res. Soc., 144 (1981).
Harrigan, T.P., et al., “A Three-Dimensional Non-Linear Finite Element Study of the Effect of Cement-Prosthesis Debonding in Cemented Femoral Total Hip Components,”J. Biomech., 24(11):1047-1058 (1991).
Harrigan, T.P., et al., “A Finite Element Study of the Initiation of Failure of Fixation in Cemented Femoral Total Hip Components,”J. Ortho. Res., 10:134-144 (1992).
Harris, W.H., et al., “Modern Use of Modern Cement for Total Hip Replacement,”Orthop. Clin. North Am., 19(3):581-589 (1988).
Harris, W.H.; et al., An overview of rough surfaced cemented femoral implants, Total Hip Replacements: the dawn of a New Era, Cambridge, MA (1998).
Huiskes, R. “Characterization and Preperties of Bone-Implant System,”Acta Orthop. Scand. Suppl., 185:19-69 (1980).
Jaffe, W.L., et al., “Normalized and Proportionalized Cemented Femoral Stem Designs”J. Arthroplasty, 10 Supplement (1995).
Jasty, M., et al., “Porosity of Various Preparations of Acrylic Bone Cements,”Clin. Orthop., 259:122-129 (1990).
Jasty, M., et al., “The Initiation of Failure in Cemented Femoral Components of Hip Arthroplasties,”J. Bone and Joint Surg. 73-B(4):551-558 (1991).
James, S.P., et al., “Extensive porosity at the cement-femoral prosthesis interface: A preliminary study,”J. Biomed. Mater. Res., 27:71-78 (1993).
James, S., et al., “Porosity Reduction at the Femoral Prosthesis/Cement Interface,”17thAnn Meet. Soc. Biomaterials, 50 (1991).
Maloney, W.J., et al.; Biomechanical and Histologic Investigation of Cemented Total Hip Arthroplasties: A Study of Autopsy-Retreived Femurs After In Vivo Cycling; Clin. Orthop., 249:129 (1989).
Mann, K.A., et al., “Cement Stresses in a Femoral Hip Component with Coulomb Friction at the stem-Cement Interface,”Trans. 37thAnn. Orthop. Res. Soc., 16, 107 (1991).
Raab, S., et al., “The quasistatic and fatigue performance of the implant/bone-cement interface,”J. Biomed. Mater. Res., 15:159-182 (1981).
Scholten, R., et al., “Analysis of stress distrubition in natural and artificial hip joints using the finite-element method,”South African Mech. Eng., 28:220-225 (1978).
Schmalzried, T.P., et al., “Autopsy Studie
Braithwaite Gavin G. C.
Ruberti Jeffrey W.
Spiegelberg Stephen H.
Bowditch & Dewey LLP
Cambridge Polymer Group, Inc.
McDermott Corrine
Sweet Thomas J
LandOfFree
System and methods for reducing interfacial porosity in cements does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and methods for reducing interfacial porosity in cements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and methods for reducing interfacial porosity in cements will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3425918