Patents Examined by Randy C. Shay
  • Patent number: 5814084
    Abstract: A dowel is provided by obtaining a plug from the shaft (diaphysis) of various long bones. The dowel has an intra-medullary canal which can be packed with any of a variety of osteogenic materials. The dowel has a cortical surface into which an instrument attachment hole may be machined and onto which an alignment mark may be inscribed for proper orientation of the intra-medullary canal. The dowel has a chamfered insertion end and has improved biomechanical and vertebral fusion induction properties as compared to standard dowels known in the art.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: September 29, 1998
    Assignee: University of Florida Tissue Bank, Inc.
    Inventors: Nicholas E. Grivas, James M. Grooms
  • Patent number: 5810012
    Abstract: A guidewire advancement system for inserting catheter guidewires into blood vessels, and more particularly a guidewire dispensing system for the controlled sterile insertion of a coiled spring guidewire to avoid infection of the patient. The system provides for the transmission of an electrical signal by the guidewire to determine its location within the body.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: September 22, 1998
    Assignee: Medical Parameters, Inc.
    Inventors: Arthur S. Lynch, A. Walter MacEachern
  • Patent number: 5800377
    Abstract: An insertion device 10 for inserting material 13 into a body cavity is provided. An elongate, tubular holder 12, shaped for insertion into the body cavity, is adapted to hold the material to be inserted. The holder 12 has a material expulsion end portion 14 and a plunger 20, which is telescopically and slidably mounted in the holder, which is adapted to expel the material from the holder when pushed manually into the holder. The holder, and preferably the plunger as well, comprises an outer paper layer 28 and a polymer layer 30, adhered to the paper layer on its outer surface, the layer having adequate water resistance to maintain its integrity during insertion into the body cavity.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: September 1, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Terese A. Campion, Mark D. Albright, Betsy A. Davison
  • Patent number: 5800526
    Abstract: The intravascular multi-anchor stent includes a plurality of cylindrical elements that are independently expandable in the radial direction and that are interconnected so as to be generally aligned on a common longitudinal axis, and a plurality of barbs along the entire circumference of the stent that face outwardly when the stent is in an expanded condition. A plurality of connecting elements are provided for interconnecting only the cylindrical elements that are adjacent to each other so that the stent, when expanded in the radial direction, retains its overall length without appreciable shortening.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: September 1, 1998
    Assignee: EndoTex Interventional Systems, Inc.
    Inventors: Scott C. Anderson, Peter S. Brown, Geoffrey A. Orth
  • Patent number: 5800551
    Abstract: A glenoid component for use in shoulder arthroplasty which is adapted to be implanted into a scapula and engaged by a head of a humeral component. The glenoid component includes a body having a first articulating surface and second textured medial surface opposite to the first articulating surface. The first articulating surface is adapted to be engaged by the head of the humeral component and the second textured medial surface is adapted to be secured to the scapula. A plurality of circular base members extends from the second textured medial surface and provides a circular base pad having a first diameter. A plurality of cylindrical pegs each have a first end adapted to engage a cavity formed in the scapula and a second end extending from one of the circular base members. Each of the cylindrical pegs is partially defined by a sidewall having a second diameter such that the first diameter of the cylindrical base pads is larger than the second diameter of the cylindrical pegs to increase peg shear strength.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: September 1, 1998
    Assignee: Biomet, Inc.
    Inventors: Daniel E. Williamson, Connie P. Marchek, Lance Dean Perry
  • Patent number: 5785707
    Abstract: A template assembly is provided for marking locations on the disc annulus for the implantation of an interbody fusion device or the introduction of a working instrument. The template assembly includes a tubular body sized for percutaneous introduction into a patient and advancement to an affected intervertebral disc. An elongated shaft slidably extends through the tubular body and is threadedly engaged to the tubular body at its proximal end so that rotation of the shaft relative to the tubular body advances the shaft through the body. A guide foot is pivotably connected to the distal end of the tubular body to be pivoted from a first position aligned with the tubular body to a second deployed position oriented substantially perpendicular to the tubular body. The guide body is pivoted from the first position to the second position by advancement of the elongated shaft through the tubular body.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: July 28, 1998
    Assignee: SDGI Holdings, Inc.
    Inventors: Lawrence M. Boyd, Eddie Ray, III
  • Patent number: 5776199
    Abstract: A spinal implant for promoting fusion between adjacent vertebrae consisting of an integral, generally rectangular member having a plurality of openings for promoting ingrowth. In the preferred embodiment, the implant has an interior enclosed chamber, accessible from the outside through an opening in one wall, and a cap for covering said opening in the wall.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: July 7, 1998
    Assignee: Sofamor Danek Properties
    Inventor: Gary Karlin Michelson
  • Patent number: 5776200
    Abstract: The method of implanting a femoral and a tibial knee prosthesis and instruments for surgically implanting the femoral and tibial prosthesis component as disclosed. The method includes the formation of a plurality of surgical cuts on the patient's distal femur. A trial tibial prosthesis is then fitted to the surgically prepared distal femur. The trial prosthesis has a femoral articulating surface and a non-articulating surface that fits the patient's distal femur at the surgical cuts. A surgeon then forms a transverse cut on the patient's proximal tibia. The surgeon places a tibial trial prosthesis on the patient's proximal tibia, the trial prosthesis including a tibial trial stem that fits the patient's intramedullary canal, a tibial trial metallic tray or plate, and a plastic trial insert that fits the tibial tray or plate. The plastic insert includes a tibial articulating surface that can articulate with the femoral articulating surface.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 7, 1998
    Assignee: Smith & Nephew, Inc.
    Inventors: Chris E. Johnson, Tim Vendrely, Leo A. Whiteside, Thomas A. Carls, John Steele, Khosrow Naraghian
  • Patent number: 5769894
    Abstract: A tissue graft is secured within a bone passage by providing a graft fixation member sized to pass through the bone passage, attaching a suture having a pair of free ends to the tissue graft and tying the suture to the fixation member so that the free ends pass through an opening in the fixation device from a first side to a second side and a length of the suture extends between the tissue graft and fixation member. The length of the suture between the tissue graft and the fixation member is adjusted by pulling at least one of the free ends, and the suture is secured to the fixation member to maintain the adjusted length.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: June 23, 1998
    Assignee: Smith & Nephew, Inc.
    Inventor: Michael C. Ferragamo
  • Patent number: 5766213
    Abstract: An absorbent article useful for wearing in the crotch portion of an undergarment is disclosed. The article has an absorbent structure disposed between a liquid-pervious, body-facing surface and a resilient, liquid-impervious, controlled-deformation shell. The shell has a pair of lateral sides, a garment-facing surface and a peripheral edge. Proximate the peripheral edge of the shell, there is a body-gasketing portion. The shell also has means for adjusting the length of the garment-facing surface and lateral sides. Thus, the garment-facing surface and lateral sides can expand or contract to relieve stresses induced by curving the article while allowing the body-gasketing portion to remain substantially free of folds and gaps.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: June 16, 1998
    Assignee: McNeil-PPC, Inc.
    Inventors: Sandy Hackman, Christopher Holliday, Kenneth Pelley
  • Patent number: 5766248
    Abstract: A dissection glove for forming in a patient a tissue pocket to receive an implantable device. The dissection glove is constructed of an absorbent material formed into at least one recess with an open end for receiving a portion of a surgeon's gloved hand. A retaining mechanism is provided for releasably retaining the dissection glove to a portion of the surgeon's gloved hand. An extraction mechanism is optionally provided for extracting the dissection glove from the tissue pocket. The dissection glove may be constructed from a variety of materials, such as polypropylene nonwoven mesh or calcium alginate gauze. The present invention is also directed to a method of forming a tissue pocket in a patient for receiving an implantable device using the present dissection glove.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: June 16, 1998
    Assignee: Medtronic, Inc.
    Inventor: Maura G. Donovan
  • Patent number: 5766256
    Abstract: A tibial prosthesis including a disk made out of a plastic material, of which a bottom surface is provided with fastening means for the interlocking with a metal ring which reinforces the disk.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: June 16, 1998
    Assignee: Tornier SA
    Inventors: Jean-Loup Oudard, Pierre Chambat, Gerard Deschamps
  • Patent number: 5766242
    Abstract: Implants comprising active agents are employed for introduction into a suprachoroidal space or an avascular region of an eye for therapeutic purposes. The administration of drugs is controlled and maintained for long periods of time, while ensuring the substantial absence of significant levels outside the site of administration.
    Type: Grant
    Filed: March 13, 1996
    Date of Patent: June 16, 1998
    Assignee: Oculex Pharmaceuticals, Inc.
    Inventors: Vernon G. Wong, Frank Kochinke
  • Patent number: 5728155
    Abstract: Improved adjustable intraocular lenses are disclosed, in which the optic(s) can be rotated post-operatively using manual methods; controlled pulses of laser radiation or micromotors to achieve improved focus and astigmatic correction.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: March 17, 1998
    Assignee: Quantum Solutions, Inc.
    Inventors: Robert Anello, Ali Amiry
  • Patent number: 5725586
    Abstract: A bone prosthesis has a stem with a hollow interior and an external surface that allows wedging contact with surrounding bone while transferring strain at a level comparable to that of natural bone. The stem is cast about an irregular plug body, which is then removed, leaving a wall thickness that satisfies the opposing constraints of high strength and relatively low stiffness. The plug narrows the prosthesis wall thickness in upper regions thereof and strengthens the wall about regions of recessed or discontinuous features, or high load coupling, to assure that the stem has adequate strength in regions of high strain, while effectively coupling strain to surrounding bone. The prosthesis is produced in a range of sizes, and plugs or entire molds for casting the hollow body are readily made and modified by a three-dimensional printing mold fabrication technique.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: March 10, 1998
    Assignee: Johnson & Johnson Professional, Inc.
    Inventor: Robert E. Sommerich
  • Patent number: 5723016
    Abstract: An implantable prosthetic patellar component comprises a patellar part (1) having one side (1a) adapted to be secured to the inner surface of a natural patella (10), and a femoral part (3) having one side (5) defining an articulation surface to replace the femoral facet of the patella, the opposite surfaces (1b and 3a) of said parts being mutually engageable to afford sliding movement therebetween in a medio-lateral direction.The implant is able to accommodate relative medio-lateral movement and thereby improve congruency. It may be used in combination with other prosthetic components in a knee joint.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: March 3, 1998
    Assignee: British Technology Group Ltd.
    Inventors: Julian Richard Minns, Swee Chai Ang, Ian Wiliam Wallace
  • Patent number: 5716403
    Abstract: A single piece soft foldable IOL having open loop haptics of specific thickness and geometry. The unique geometry provides an IOL with improved fixation and centration.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: February 10, 1998
    Assignee: Alcon Laboratories, Inc.
    Inventors: Son Trung Tran, Stephen J. Van Noy
  • Patent number: 5716349
    Abstract: An absorbent article, such as a sanitary napkin, having longitudinal side margins with pleats or tucks is provided. The tucks cause the absorbent article to assume a curved, body-conforming shape, and provide the absorbent article with sides that stand up to serve as a barrier to soiling of the wearer's undergarments.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: February 10, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Joann Lee Taylor, Kenneth Barclay Buell, Thomas Ward Osborn, III
  • Patent number: 5713952
    Abstract: A holder for engaging a heart valve prosthesis during implantation includes a mechanism for attaching the holder to the heart valve prosthesis. The heart valve prosthesis includes a circular valve body having an annulus with a substantially annular aperture therein. At least one movable occluder is carried in the aperture and is movable between an open position and a closed position. The attachment mechanism attaches to the occluder thereby securing the holder to the heart valve prosthesis.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: February 3, 1998
    Assignee: St. Jude Medical, Inc.
    Inventors: Guy P. Vanney, Kurt D. Krueger
  • Patent number: 5702472
    Abstract: A phalangeal joint prosthesis for replacing damaged interphalangeal finger joints. The prosthesis includes first and second pins, each having an elongate shaft for inserting into the articulaling end of a first or a second phalange on respective sides of a finger joint. Each pin further includes a head with a lower surface mounted on the shaft and a convex cylindrically-shaped bearing surface that is opposite the lower surface and defines an axis of curvature. The prosthesis further includes a spacer configured to be disposed between the heads of the first and the second pins. The spacer has opposed bearing surfaces that are each configured to mate with the bearing surface of one of the heads so that the beating surfaces of the heads are generally oriented toward each other. The spacer couples the first and second pins in a spaced relationship with parallel axes of curvature to permit the prosthesis to flex and extend in a single plane while constraining abduction, adduction and rotation of the prosthesis.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: December 30, 1997
    Inventor: Randall J. Huebner