Patents by Inventor Henk W. Wevers

Henk W. Wevers has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5044847
    Abstract: A floor anchor pocket for mounting in a vehicle designed to carry wheelchairs or cargo is described. The pocket is provided with an internally located spring and a specially shaped cut-out so as to provide positive self locking for a tie down strap hook which is insertable therein.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: September 3, 1991
    Assignee: Queen's Univeristy at Kingston
    Inventors: Gerald A. B. Saunders, Henk W. Wevers, David Siu
  • Patent number: 5021061
    Abstract: A thin plate patello-femoral-tibial resurfacing prosthesis is described. The patellar component is a metallic shell which is designed to be as thin as possible so as to retain maximum natural bone thickness and hence strength. The metallic patellar component articulates with a plastic insert in a metallic femoral component. The tibial bearing area of the femoral component is metallic for articulation with a plastic proximal tibial prosthesis.
    Type: Grant
    Filed: September 26, 1990
    Date of Patent: June 4, 1991
    Assignee: Queen's University at Kingston
    Inventors: Henk W. Wevers, John F. Rudan
  • Patent number: 4769040
    Abstract: An improved tibial plateau prosthesis is described in which a baseplate is anatomically peripherally shaped and provided with a knife edge perimeter which cuts into the soft tissue outer edge of the epiphyseal shell of the tibia and effectively caps the tibia. Hoop stresses are reduced, and the use of wrought metal for the baseplate, inclusion of a deep intercondylar cut out as well as a series of performations at locations corresponding to positions of hardness of the cancellous bone facilitates flexibility more in tune with the properties of the original subchondral bone plate and cartilage which in turn reduces "lift-off" from an unloaded condyle during loading of the other condyle. Bone ingrowth is encouraged by accurate flat cutting and the provision of the perforations. Initial stability is promoted by the knife edge and its asymmetrical circumferential shape.
    Type: Grant
    Filed: November 18, 1986
    Date of Patent: September 6, 1988
    Assignee: Queen's University at Kingston
    Inventor: Henk W. Wevers
  • Patent number: 4456006
    Abstract: A bone clip for surgical repair of bones in vivo, having a body and depending legs at each end thereof and perpendicular thereto. Means are provided to draw the legs inwardly towards each other after insertion into the bone so as to draw the bone ends together under a preselected pressure.
    Type: Grant
    Filed: August 12, 1983
    Date of Patent: June 26, 1984
    Assignee: Queen's University at Kingston
    Inventors: Henk W. Wevers, Charles Sorbie, Gerald A. B. Saunders
  • Patent number: 4246660
    Abstract: A prosthetic ligament device comprising an elastic element securable to the underlying bone structure by means of a quick release bayonet-type fitting which permits rotational movement during engagement at one end and a length adjusting means at the other end thereof. The elastic element comprises a plurality of parallel, longitudinal, polyester cords which form the warp, interwoven with a plurality of transverse soft silicone or polyurethane tubes which form the weft. Upon extension the soft tubes compress so as to permit a relatively large elongation of the elastic element at low stress, but upon continued extension the elastic element becomes progressively stiffer, simulating a natural ligament.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: January 27, 1981
    Assignee: Queen's University at Kingston
    Inventor: Henk W. Wevers