Patents by Inventor Alex F. Wojciechowicz

Alex F. Wojciechowicz 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: 5968077
    Abstract: A sternotomy suture comprises a loop which passes around a split sternum and is twisted until double cabling begins at which point the suture is fastened to itself. The loop preferably comprises a single strand of wire with one end welded to an intermediate point of said strand leaving a portion available for connection to the needle. A curved needle having a cutting tapered point is swaged to the free end of the single strand. Initially the wire is passed around the split sternum and the needle then removed with a pair of diagonal cutting pliers. A twisting tool, having a handle and a hooked portion, passes through the two free loops on opposite sides of the sternum. Twisting force is applied to the tool and transmitted through the hook to the suture causing it to twist and cable. The suture reaches its critical length L.sub.crit when the loop is fully cabled but before double cabling begins. At the onset of double cabling the loop reaches its maximum tension T.sub.crit.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: October 19, 1999
    Assignee: Alto Development Corporation
    Inventors: Alex F. Wojciechowicz, Garth R. McDonald
  • Patent number: 5830234
    Abstract: A sternotomy suture comprises a loop which passes around a split sternum and is twisted until double cabling begins at which point the suture is fastened to itself. The loop preferably comprises a single strand of wire with one end welded to an intermediate point of said strand leaving a portion available for connection to the needle. A curved needle having a cutting tapered point is swaged to the free end of the single strand. Initially the wire is passed around the split sternum and the needle then removed with a pair of diagonal cutting pliers. A twisting tool, having a handle and a hooked portion, passes through the two free loops on opposite sides of the sternum. Twisting force is applied to the tool and transmitted through the hook to the suture causing it to twist and cable. The suture reaches its critical length L.sub.crit when the loop is fully cabled but before double cabling begins. At the onset of double cabling the loop reaches its maximum tension T.sub.crit.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: November 3, 1998
    Assignee: Alto Development Corporation
    Inventors: Alex F. Wojciechowicz, Garth R. McDonald
  • Patent number: 4932952
    Abstract: A suction coagulator includes an improved venting system and suction tip to minimize the potential of electrical shock hazard for the surgeon using the apparatus. The nonconductive, plastic handle of the device is attached to the proximal end of an insulated, conductive metal cannula at the distal end of which is located the cauterizing, suction tip. A suction fitting at the rear end of the handle communicates through the hollow interior cavity of the handle and the interior channel in the cannula with the cauterizing tip. A suction control finger operated venting port located on the exterior of the handle is connected by a passageway to the interior cavity. It has been found that the tendency of the suction control passageway to fill up with blood significantly decreases if at least a portion of the suction control venting port is located downstream of the proximal end of the cannula.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: June 12, 1990
    Assignee: Alto Development Corporation
    Inventor: Alex F. Wojciechowicz, Jr.