Patents by Inventor Bo H. Hakansson

Bo H. Hakansson 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: 4431001
    Abstract: An electrical stimulator system is described incorporating rechargeable batteries and a charging circuit. A charging set and electrode support are alternatively connected to the stimulator system via a single common two-pole terminal. The system is designed to prevent current from flowing directly from the battery to the electrode support along the charging circuit while allowing charge current to flow in the opposite direction along the charging circuit if the charging set is connected to the system instead of the electrode support.
    Type: Grant
    Filed: September 10, 1981
    Date of Patent: February 14, 1984
    Assignee: Crafon Medical AB
    Inventors: Bo H. Hakansson, Roy A. Saario
  • Patent number: 4302972
    Abstract: Temperature-sensitive instruments and methods for producing them are disclosed. The apparatus disclosed comprises a pair of temperature-sensitive sensors which have at least one electrical property, such as resistance, which varies with temperature, and which are in electrical communication with each other, conductors connected to these sensors so that the temperature-sensitive instrument can be employed to provide a temperature reading by determining that electrical property from the conductors, and where the electrical property of each of the sensors has equal and opposite deviations from predetermined values so that the sum of those deviations approximately equals zero. In a preferred embodiment the sensors are coupled in series.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: December 1, 1981
    Assignee: Crafon Medical AB
    Inventors: George W. Oettle, Bo H. Hakansson
  • Patent number: 4296760
    Abstract: Electrical stimulators are disclosed particularly for vaginal placement, comprising an element which is elongated along an axis corresponding with a direction in which the stimulator is intended to be placed, and, including a transverse cross-section having elongated axis in one direction perpendicular to its other axis, and a plurality of electrodes located on one side of a longitudinal cross section of the elongated element corresponding with that elongated axis, thus stabilizing its rotation upon its vaginal placement with the electrodes facing in a predetermined direction. The electrodes are adapted to control the urethral, urocystic and/or rectal functions through electrical pulses provided from a pulse generator, and the elongated element is preferably formed of rubber, plastics or the like, and is inflatable.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: October 27, 1981
    Assignee: Gambro AB
    Inventors: Per-Olov A. V. Carlsson, Bo H. Hakansson
  • Patent number: 4123353
    Abstract: A method and apparatus is provided for measuring the content of a low-molecular weight compound in a complex medium which includes a dialyzer, conduits for conveying the complex medium through the dialyzer and conduits for supplying dialysis fluid to the dialyzer to receive by diffusion a portion of the low-molecular weight compound in the complex medium to produce a dialysate. Apparatus is also provided for conducting the dialysate produced from the dialyzer to a measuring unit, wherein the conducting apparatus includes a main flow line having an enzyme bed and a shunt flow line. A control device is provided for directing the flow of dialysate through the main flow line and the enzyme bed or the shunt flow line, so that the flow of dialysate bypasses the enzyme bed. Apparatus is also provided for comparing the dialysates in the main and shunt flow lines.
    Type: Grant
    Filed: November 29, 1977
    Date of Patent: October 31, 1978
    Assignee: Gambro AB
    Inventors: Bo H. Hakansson, Ulf T. G. Nylen, Lars A. G. Qvarnstrom
  • Patent number: D251234
    Type: Grant
    Filed: June 24, 1976
    Date of Patent: March 6, 1979
    Assignee: Holger Crafoord AB
    Inventors: Bo H. Hakansson, Lars O. V. Naucler
  • Patent number: D267512
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: January 4, 1983
    Assignee: Crafon Medical AB
    Inventors: Per-Olov A. V. Carlsson, Bo H. Hakansson