Patents Assigned to Protek A.G.
  • Patent number: 4359785
    Abstract: In patients with hypoplastic hip joints, hip joint prostheses with relatively thin and narrow shank blades must be used. For this reason, due to the torque effect of the force acting on the joint head, the danger exists that deformations of the shank blades may occur. This danger is counteracted in that the collar type projection forming the transition between the shank and the prosthesis neck extends in a direction parallel to the prosthesis neck, preferably in a prolongation of the lower edge of the prosthesis neck.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: November 23, 1982
    Assignee: Gebruder Sulzer, Aktiengesellschaft Protek A.G.
    Inventor: Peter G. Niederer
  • Patent number: 4310931
    Abstract: To obtain an increase of the lateral distance between the longitudinal median axis of the straight prosthesis shank and the center of the joint head, the straight shank has a tapered medial side which changes over to an arcuate side on an arc of a circle which connects the transition point with the point of the smooth passage of the medial side into the prosthesis neck and with the center of the joint head. The angle between the longitudinal median axis and the prosthesis neck axis remains unchanged. This results in a lateral distance enlargement without having to shift the relative height position of the point at which the curved shank side meets the neck in the body, i.e., relative to the muscle origins.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: January 19, 1982
    Assignees: Gebruder Sulzer A.G., Protek A.G.
    Inventor: Maurice E. Muller
  • Patent number: 3946728
    Abstract: A device for use in the surgical treatment of a patient suffering from a funnel breast condition is disclosed. The device comprises two mutually symmetrical clamping members each having an end portion adapted to be secured to a respective rib of such a patient, fastening means for rigidly connecting to one another the respective other end portions of the two clamping members, and a flexible member engageable with the fastening means and adapted to attach the latter to the breast bone of such patient.
    Type: Grant
    Filed: May 24, 1974
    Date of Patent: March 30, 1976
    Assignee: Protek A.G.
    Inventor: Marcel Bettex