Plural Pivots Patents (Class 433/160)
  • Patent number: 7682151
    Abstract: The invention discloses an integrated 3 D surgical guide, guide bar, mini-implant system and a procedure to stabilize dental prostheses, based on implanting two parallel mini-implants at a given distance and then joining them by means of a prosthetic bar mounted on them, thus achieving the required strength to mount on the bar a metallic clip that retains a dental prosthesis. The advantage of this integrated system is the stabilization of dental prostheses with high precision and save standardized protocol, lower costs and less trauma for the patient than the traditionally used method.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: March 23, 2010
    Assignee: Universidad de Concepcion
    Inventor: Jorge Jofre Araya
  • Patent number: 7108509
    Abstract: Device for pushing away an enclosure arranged around a dental element. When filling dental elements, it is important that adjacent dental elements should come into contact with one another at a defined location. To this end, the invention proposes a tool for pushing the enclosure arranged around the dental element onto the adjacent dental element during the filling operation. In the vicinity of the free end, this tool is provided with a thickened section which has to push away an enclosure of this type. This thickened section is provided with a recess in the vicinity of the free end, approximately in the center. This recess forms an elevation in the filling material, and in this way shrinkage stresses can be guided out of the center of the filling material towards the outside, resulting in a shrinkage-free filling.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: September 19, 2006
    Assignee: Tandarts Praktijk P.G. Heesen B.V.
    Inventor: Petrus Gerardus Heesen
  • Patent number: 5127918
    Abstract: A latching device for enabling pieces of tissue or foreign bodies to be held securely by medical forceps during a medical operation comprises two elongate spring members whose opposed ends are secured in closed, telescoping tubes which are hinged to the handles of a forceps. The forceps handles are elastically yielding to some degree and by closing them together the spring members are moved towards one another and are caused to hook together by means of butting faces. Hence the tissue or the like which the forceps has taken hold of is automatically held secure once the manual pressure on the handle has been relaxed. If the handles are pressed closer together, the hooked interengagement is released and the spring-loading in the forceps handles opens them and allows the forceps jaws to release the tissue or the like which is being held.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: July 7, 1992
    Assignee: Richard Wolf GmbH
    Inventor: Manfred Boebel
  • Patent number: 5057016
    Abstract: A pair of dental forceps, whether configured for anterior, premolar or molar teeth, includes a pair of tips having removable cushioning and gripping inserts for conformingly gripping and frictionally retaining a respective dental prosthetic device, such as a crown or bridge, to be removed without imposing stress concentrations sufficient to mar or damage the dental prosthetic device.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: October 15, 1991
    Assignee: Thomas A. Lukase
    Inventors: Stephen P. Lukase, Thomas A. Lukase
  • Patent number: 4856518
    Abstract: An articulable, rotatable, surgical clamping device which includes an upper handle portion connected to a fixed collar which acts on a center spindle element. The center spindle element subtended by a fixed collar slidingly engages clamp extender elements so as to alternately pull them towards each other or apart so as to clamp the clamping elements. The clamp extender elements being separated from the handle elements by a rotatable cuff which allows free rotation between the plane of articulation of the clamp elements and the plane containing the handle portions.
    Type: Grant
    Filed: December 9, 1987
    Date of Patent: August 15, 1989
    Inventor: Joseph T. McFadden
  • Patent number: 4248587
    Abstract: A tool in the form of specially constructed plyers for removing orthodontic brackets and tubes which have been adhesively bonded to the labial, buccal or lingual surfaces of the anterior and/or posterior teeth for orthodontic treatment. The tool is equipped with a spring-loaded catch having a tip which fits under the edge of the bracket, and with a head which engages the top of the tooth, so that when the handles of the tool are squeezed together the bonded bracket is removed from the surface of the tooth without any tendency to torque the tooth during the process.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: February 3, 1981
    Inventor: Craven H. Kurz