Patents Assigned to Memometal Technologies
  • Patent number: 9011505
    Abstract: The invention relates to a self-tapping and self-boring osteosynthesis screw for compressive orthopaedic surgery, characterised in that, in the bone engagement regions, at both the distal portion (A1a) and at the proximal portion (A2a), the sum of the angles defining the outer taper of the shank (f) and the taper of the crest line of the screw thread pitch (P) is higher than 45°, and in that the leading portion (i.e. the most distal one) of each thread includes a plurality of cutting edges (AR) obtained by stock removal.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: April 21, 2015
    Assignee: Memometal Technologies
    Inventors: Bernard Prandi, Jean Lariviere, Mohammed R'Taimate
  • Patent number: 8894650
    Abstract: An assembly for reducing a fracture between an epiphysis and a diaphysis of a bone has a bone plate having a fan-shaped outer end formed with a plurality of outer holes and a bar-shaped inner end extending along a longitudinal axis from the outer end and formed with a plurality of inner holes. The plate further is formed on the bar-shaped inner end with a longitudinally extending through going guide slot and between the guide slot and the outer holes with an aperture. A slide has a longitudinally extending leg with an inner end formed with a guide formation engaged into and longitudinally slidable along the guide slot and a crosspiece overlying the aperture and engaging the bone plate to both transverse sides of the aperture. The crosspiece is formed with a transversely elongated slide slot, and a slide screw engaged through the slide.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: November 25, 2014
    Assignee: Memometal Technologies
    Inventors: Bernard Prandi, Gregoire Chick, Jean Michel Cognet, Xavier Martinache, Michaël Papaloïzos, Alain Tchurukdichian
  • Patent number: 8858644
    Abstract: An orthopaedic implant used in arthroplasty of the fingers comprises a first element for a proximal phalanx and a second element for an adjacent distal phalanx, each element having a respective stem for implantation in the bone and an interphalangeal articulation head, the head of the first element having a biconvex surface of articulation, with a central valley, and the head of the second element having a biconcave surface of articulation designed to cooperate with said convex surface and comprising a central crest. At rest, the surfaces are congruent in the frontal plane of the articulation in the area of the condyles and non-congruent in the sagittal plane.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: October 14, 2014
    Assignee: Memometal Technologies
    Inventors: Jean Goubau, Xavier Martinache, Michaël Papaloïzos, Philippe Bellemere, Thierry Dreano, Bernard Prandi, Pierre Siret, Alain Tchurukdichian
  • Patent number: 8647390
    Abstract: An intramedullary anchoring stem for an orthopaedic implant head. The stem is in one piece, is made of biocompatible material and is movable in relation to the head, with which it has connecting means, and it has a truncated or substantially truncated peg shape at least partially recessed longitudinally, and parallel or substantially parallel to the dorso-palmar plane.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: February 11, 2014
    Assignee: Memometal Technologies
    Inventors: Philippe Bellemere, Thierry Dreano, Jean Goubau, Xavier Martinache, Michaël Papaloïzos, Bernard Prandi, Pierre Siret, Alain Tchurukdichian
  • Patent number: 8579898
    Abstract: A bone plate for a fracture between an epiphysis and a diaphysis has an outer part unitarily formed with a fan-shaped outer end having a plurality of outer holes and an inner end extending from the outer end. A bar-shaped inner part has an outer end juxtaposed with the inner end of the outer part and formed inward of its outer end with a plurality of inner holes. A pivot is provided between the inner end of the outer part and the outer end of the inner part. Formations juxtaposed with the pivot on the inner end of the outer part and on the outer end of the inner part are lockable together in each of a plurality of angularly offset fixed positions of the inner and outer parts. When the formations are pressed together the inner and outer parts are locked angularly relative to each other.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: November 12, 2013
    Assignee: Memometal Technologies
    Inventors: Bernard Prandi, Gregoire Chick, Jean Michel Cognet, Xavier Martinache, Michaël Papaloïzos, Alain Tchurukdichian
  • Patent number: 8556946
    Abstract: The invention relates to a plate fixed between two bone parts by way of screws engaged in holes formed in the thickness of the plate. The plate comprises an angled member or rib which is inclined according to an angle of between about 30° and 60° in relation to the plane defined by the plate. The angled member or rib has a hole for engaging a screw and is located in the central part of the width, over a determined part of the length of the plate, so that the screw brings the two bone parts into a compressive position.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: October 15, 2013
    Assignee: Memometal Technologies
    Inventors: Bernard Prandi, Keith Wapner, Charles P. Wapner, Peter W. Wapner
  • Patent number: 8475456
    Abstract: An intramedullar osteosynthetic device includes a body with an elongated shape and a flat cross-section having, in succession, from one of its ends, a first fixation zone cooperating with one of the bone parts to be immobilized, a median zone suitable for withstanding the shear and bending stresses, and a second fixation zone in the other bone part to be immobilized. Each of the fixation zones is made from a material suitable for enabling their deformation by thermal action (tepid memory) or mechanical action (superelasticity), to permit an introduction into the bone parts without pulpar approach, followed by a fixation in the bone parts, while avoiding any rotational movement, withstanding the tensile stresses, and maintaining a compressive force. At least one of the fixation zones has two tabs or fins and which are separable under the effect of the deformation.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: July 2, 2013
    Assignee: Memometal Technologies
    Inventors: Marc Augoyard, Jacques Peyrot, Tristan Meusnier, Bernard Prandi
  • Patent number: 8419776
    Abstract: An assembly for reducing a fracture between an epiphysis and a diaphysis of a bone has a bone plate having a fan-shaped outer end formed with a plurality of outer holes and a bar-shaped inner end extending along a longitudinal axis from the outer end and formed with a plurality of inner holes. The plate further is formed on the bar-shaped inner end with a longitudinally extending throughgoing guide slot and between the guide slot and the outer holes with an aperture. A slide has a longitudinally extending leg with an inner end formed with a guide formation engaged into and longitudinally slidable along the guide slot and a crosspiece overlying the aperture and engaging the bone plate to both transverse sides of the aperture. The crosspiece is formed with a transversely elongated slide slot, and a slide screw engaged through the slide.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: April 16, 2013
    Assignee: Memometal Technologies
    Inventors: Bernard Prandi, Grégoire Chick, Jean Michel Cognet, Xavier Martinache, Michaël Papaloïzos, Alain Tchurukdichian
  • Patent number: 8414583
    Abstract: The invention relates to an intramedullary implant for use between two bones or two bone fragments. The implant includes a single-piece body having a generally elongate shape and having, at each end, areas for anchoring to the bone portions in question, characterized in that one of said areas has a generally cylindrical shape while the other area has a flat cross-section.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: April 9, 2013
    Assignee: Memometal Technologies
    Inventors: Bernard Prandi, Marc Augoyard, Thomas Ledermann, Tristan Meusnier, Jacques Peyrot, Judith Fellmann
  • Patent number: 8394097
    Abstract: Intramedullary osteosynthesis device is capable of adopting a profiled H-shape in a closed introductory state in order to be easily implantable and an X-shape in an open implanted state for good fixation in the bone.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: March 12, 2013
    Assignee: Memometal Technologies
    Inventors: Jacques Peyrot, Tristan Meusnier, Bernard Prandi, Marc Augoyard, Philippe Bellemere
  • Patent number: 8137351
    Abstract: A clamp has two arms with gripping jaws for supporting and positioning a superelastic osteosynthesis clip, The osteosynthesis clip comprising a web from which two flanges to be inserted into two portions of bone emerge. The clamp also has a component for preventing the jaws from being opened beyond a point at which the angle between the flanges of a clamp supported clip is greater than 90°; and a second component for preventing the jaws from being closed beyond a point at which the angle between the flanges and the web is substantially 90°.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: March 20, 2012
    Assignee: Memometal Technologies
    Inventor: Bernard Prandi