Patents Examined by D. Isabella
  • Patent number: 5026395
    Abstract: An intraocular lens having a lens base and a coating layer disposed on or otherwise operably associated with a first surface of the lens base. The coating layer is formed by, for example, plasma polymerization of a monomer gas while simultaneously sublimating or evaporating an ultraviolet absorber, thereby forming an intraocular lens which absorbs ultraviolet rays and prevents any free monomer or other substance from oozing out of the lens base and permeating the eye. The properties of the intraocular lens can be readily varied by selecting different monomer gases.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: June 25, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ikuo Nakajima, Moriyuki Okamura, Toshiji Nishiguchi
  • Patent number: 4960423
    Abstract: The attachment and growth of endothelial cells on the luminal surface of a vascular prosthesis are enhanced by coating the luminal surface of the vascular prosthesis with peptide derived from elastin. The resultant vascular prosthesis, which may be seeded with endothelial cells just prior to implantation has an enhanced anti-thrombogenic luminal surface.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: October 2, 1990
    Inventor: Donald W. Smith
  • Patent number: 4883490
    Abstract: An acetabular cup of approximately hemispherical configuration adapted for implantation in the acetabulum and having an outer surface with a generally part-spherical contour and an inner concave bearing surface adapted to receive a femoral head. The outer surface has a plurality of grooves defining segments, and the grooves are adapted to receive, and interlock with, cement for affixing the acetabular cup within the acetabulum. At least one of the grooves has an undercut which defines an overhanging flange. Cement is received in such groove behind the flange to interlock with the flange and to resist loosening of the acetabular cup from the acetabulum. The acetabular cup has spacer lugs on the segments, and a radiopaque marker is embedded in one of the segments in a polar region of the acetabular cup.
    Type: Grant
    Filed: March 7, 1984
    Date of Patent: November 28, 1989
    Inventor: Indong Oh
  • Patent number: 4851004
    Abstract: An intramedullary prosthesis device and the method of orthopedic implantation of the prosthesis device, particularly for a hip prosthesis. The prosthesis device and the method of implantation are directed to a precise undersized stem socket defined by compact bone formed by cortical or dense cancellous bone, and an oversized stem of the prosthesis device coated with a soft, resilient and compressible coating so that upon insertion of the coated stem within the undersized socket the coating is compressed along the length of the stem by the surrounding compact bone of the socket.
    Type: Grant
    Filed: December 31, 1985
    Date of Patent: July 25, 1989
    Inventor: Charles A. Homsy
  • Patent number: 4842606
    Abstract: A bone implant, in particular as a shaft-type prosthesis, which has a mirror-symmetrical shape is proposed, wherein for adaptation to bone regions of the left or right half of the body that in themselves are not mirror-symmetrical, the part having mirror-symmetrical shape forms a basic element, and a separately shaped additional element is provided that is joined or can be joined to the basic element in such a manner that a bone implant that is not mirror-symmetrical and is usable only on the left or right side of the body is produced.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: June 27, 1989
    Assignee: Mecron Medizinische Produkte GmbH
    Inventors: Curt Kranz, Amir Zahedi, Emmanuel Anapliotis
  • Patent number: 4769039
    Abstract: The tibial implant is made with two truncoconical faces which extend from a common plane for different distances. The differential extent permits implantation in a natural tibia having sockets which have different degrees of wear, thus avoiding unnecessary loss of healthy bone during a resection procedure. The truncoconical faces are provided on metal bowls which can be welded together along a common plane and which together form a support to receive a plastic member providing the joint sliding surfaces and providing a pair of expansion elements for expanding barbed hollow bodies extending from the metal bowls.
    Type: Grant
    Filed: August 27, 1986
    Date of Patent: September 6, 1988
    Assignee: Sulzer Brothers Limited
    Inventor: Willi Horber
  • Patent number: 4676801
    Abstract: A positive casting for a human foot for use in making a foot orthosis is disclosed. The positive casting includes a main section, a rear section, and a front section. The rear section is movable with respect to the main section for correcting deformities in the rearfoot. The front section is movable with respect to the main section for correcting deformities in the forefoot. A mechanism is also provided for fixing together and adjustably positioning the three sections thus formed with respect to one another. The casting can include a first ray section cut from the front section and movable with respect to the front section for correcting deformities in the forefoot and first ray. A method is also disclosed for forming a foot orthosis which includes the improvement of sectioning a positive casting made of a foot into a main section, a front section, and a rear section. The main section, front section, and rear section are adjusted with respect to each other to correct for deformities in the foot.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: June 30, 1987
    Assignee: Orthopedic Specialties, Inc.
    Inventor: Richard O. Lundeen