The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 2003
Filed:
Mar. 19, 2001
Andrew Dawood, London, GB;
Anders Petersson, Gothenburg, SE;
Nobel Biocare AB (publ), Gothenburg, SE;
Abstract
An instrument is connected to a driving-in tool or drilling tool for elements on or in the form of an implant or drill for dentine. The tool includes an electric motor, the torque of which can be sensed, and which can be controlled by a control unit. A display unit is arranged so as to partly or fully display a curve representing the driving-in function performed. A tightening function is determined by a scale based on the slope of the curve, wherein a flatter slope represents a lower quality function and a steeper slope represents a higher quality function. A frictional resistance which exists for an element during the driving-in of the element can be determined in order to allow secure locking (preload) of the element by tension in the material of the element. A torque-time curve can be used assess the bone quality of bone being implanted or drilled.