Patents by Inventor Ronald Prager

Ronald Prager 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).

  • Publication number: 20220226558
    Abstract: A bone harvesting device includes a main body having an internal cavity and a suction port adapted to be coupled to a suction source. The device further includes an outer tube (200) having an interior surface, an exterior surface, a proximal end and a distal end, the proximal end of the outer tube being coupleable to the main body, an inner tube having an interior surface, an exterior surface, a proximal end and a distal end, the inner tube being in fluid communication with the internal cavity and at least partially disposed within the outer tube such that a venting channel is defined between at least a portion of the inner tube and at least a portion of the outer tube.
    Type: Application
    Filed: February 7, 2020
    Publication date: July 21, 2022
    Inventors: Roman Nassutt, Torben Bröhan, Helge Giersch, Ronald Prager
  • Patent number: 9456875
    Abstract: Device and a method for positioning and monitoring the rotary orientation of extremity bone fragments when implanting an intramedullary implant, and in particular to a device and a method for monitoring the rotary orientation of extremity bone fragments of the leg when implanting an intramedullary nail by using a monitoring of locking means of the intramedullary nail which so as to improve the accuracy of the orientation of extremity bone fragments.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: October 4, 2016
    Assignee: Stryker European Holdings I, LLC
    Inventors: Volker Bühren, Ronald Prager
  • Patent number: 8672940
    Abstract: An implant for osteosynthesis, for example a bone nail, has an implant body which has at least one bore with a threaded portion and a bone screw which engages the thread when it is threaded into a bone for the fixation of the implant body. The threaded bore has an annular groove the diameter of which is larger than the thread outer diameter, and which receives a ring of a deformable material with an inner diameter which is smaller than the outer diameter of the thread of the bone screw so that the ring extends partially into the bore.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: March 18, 2014
    Assignee: Stryker Trauma GmbH
    Inventors: Ronald Prager, Nils Zander
  • Publication number: 20130317512
    Abstract: Device and a method for positioning and monitoring the rotary orientation of extremity bone fragments when implanting an intramedullary implant, and in particular to a device and a method for monitoring the rotary orientation of extremity bone fragments of the leg when implanting an intramedullary nail by using a monitoring of locking means of the intramedullary nail which so as to improve the accuracy of the orientation of extremity bone fragments.
    Type: Application
    Filed: December 23, 2010
    Publication date: November 28, 2013
    Applicant: STRYKER TRAUMA GMBH
    Inventors: Volker Bühren, Ronald Prager
  • Patent number: 8372085
    Abstract: A screwdriver for bone screws, especially for compression screws and locking screws, has a handle and shaft extending out centrally from the handle. The shaft has a screwdriving tool on its free end. The shaft, includes a flexible shaft portion, wherein the shaft has two rigid, solid portions on both sides of the flexible portion. The flexible shaft portion has a flexible element for the transmission of a torque, and at least the flexible shaft portion is surrounded by an elastic protection hose or a rubber or plastic elastomeric tubular cover.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: February 12, 2013
    Assignee: Stryker Trauma GmbH
    Inventors: Ronald Prager, Stefan Völzow
  • Publication number: 20130012943
    Abstract: An implant for osteosynthesis, for example a bone nail, has an implant body which has at least one bore with a threaded portion and a bone screw which engages the thread when it is threaded into a bone for the fixation of the implant body. The threaded bore has an annular groove the diameter of which is larger than the thread outer diameter, and which receives a ring of a deformable material with an inner diameter which is smaller than the outer diameter of the thread of the bone screw so that the ring extends partially into the bore.
    Type: Application
    Filed: August 7, 2012
    Publication date: January 10, 2013
    Applicant: STRYKER TRAUMA GMBH
    Inventors: Ronald Prager, Nils Zander
  • Patent number: 8241287
    Abstract: An implant for osteosynthesis, for example a bone nail, has an implant body which has at least one bore with a threaded portion and a bone screw which engages the thread when it is threaded into a bone for the fixation of the implant body. The threaded bore has an annular groove the diameter of which is larger than the thread outer diameter, and which receives a ring of a deformable material with an inner diameter which is smaller than the outer diameter of the thread of the bone screw so that the ring extends partially into the bore.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: August 14, 2012
    Assignee: Stryker Trauma GmbH
    Inventors: Ronald Prager, Nils Zander
  • Publication number: 20100191240
    Abstract: An implant for osteosynthesis, for example a bone nail, has an implant body which has at least one bore with a threaded portion and a bone screw which engages the thread when it is threaded into a bone for the fixation of the implant body. The threaded bore has an annular groove the diameter of which is larger than the thread outer diameter, and which receives a ring of a deformable material with an inner diameter which is smaller than the outer diameter of the thread of the bone screw so that the ring extends partially into the bore.
    Type: Application
    Filed: April 5, 2010
    Publication date: July 29, 2010
    Applicant: Stryker Trauma GmbH
    Inventors: Ronald Prager, Nils Zander
  • Publication number: 20080243136
    Abstract: A screwdriver for bone screws, especially for compression screws and locking screws, has a handle and shaft extending out centrally from the handle. The shaft has a screw-driving tool on its free end. The shaft, includes a flexible shaft portion, wherein the shaft has two rigid, solid portions on both sides of the flexible portion. The flexible shaft portion has a flexible element for the transmission of a torque, and at least the flexible shaft portion is surrounded by an elastic protection hose or a rubber or plastic elastomeric tubular cover.
    Type: Application
    Filed: April 18, 2008
    Publication date: October 2, 2008
    Applicant: Stryker Trauma GmbH
    Inventors: Ronald Prager, Stefan Volzow
  • Publication number: 20070239164
    Abstract: An implant for osteosynthesis, for example a bone nail, has an implant body which has at least one bore with a threaded portion and a bone screw which engages the thread when it is threaded into a bone for the fixation of the implant body. The threaded bore has an annular groove the diameter of which is larger than the thread outer diameter, and which receives a ring of a deformable material with an inner diameter which is smaller than the outer diameter of the thread of the bone screw so that the ring extends partially into the bore.
    Type: Application
    Filed: June 5, 2007
    Publication date: October 11, 2007
    Applicant: Stryker Trauma GmbH
    Inventors: Ronald Prager, Nils Zander
  • Patent number: 7247157
    Abstract: An implant for osteosynthesis, for example a bone nail, has an implant body which has at least one bore with a threaded portion and a bone screw which engages the thread when it is threaded into a bone for the fixation of the implant body. The threaded bore has an annular groove the diameter of which is larger than the thread outer diameter, and which receives a ring of a deformable material with an inner diameter which is smaller than the outer diameter of the thread of the bone screw so that the ring extends partially into the bore.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: July 24, 2007
    Assignee: Stryker Trauma GmbH
    Inventors: Ronald Prager, Nils Zander
  • Publication number: 20060155289
    Abstract: A device for reaming of a bone cavity or a channel of a hollow bone has an elongated, hollow shaft, a first end of which is adapted to be mounted to a rotary drive means in an angularly stable fashion. The device has a spindle, which is borne rotatably within the shaft and has a first end which extends to the mounting-end of the shaft and a second end which extends beyond the other end of the shaft. The first end of spindle is adapted for a rotary connection to a drive spindle of the rotary device means. A flexible, elongated member is provided which is, at its first end, laterally connectable to the second end of spindle, and a profile member made of a hard material located at the other end of the flexible member.
    Type: Application
    Filed: December 8, 2005
    Publication date: July 13, 2006
    Applicant: Stryker Trauma GmbH
    Inventors: Reinhard Windhager, Ronald Prager, Bernd Robioneck
  • Publication number: 20050115368
    Abstract: A screwdriver for bone screws, especially for compression screws and locking screws, has a handle and shaft extending out centrally from the handle. The shaft has a screw-driving tool on its free end. The shaft, includes a flexible shaft portion, wherein the shaft has two rigid, solid portions on both sides of the flexible portion. The flexible shaft portion has a flexible element for the transmission of a torque, and at least the flexible shaft portion is surrounded by an elastic protection hose or a rubber or plastic elastomeric tubular cover.
    Type: Application
    Filed: November 16, 2004
    Publication date: June 2, 2005
    Applicant: Stryker Trauma GmbH
    Inventors: Ronald Prager, Stefan Volzow
  • Publication number: 20040158252
    Abstract: An implant for osteosynthesis, such as, for example, a bone nail, has an implant body which has at least one bore with a threaded portion and a bone screw which engages the thread when it is threaded into a bone for the fixation of the implant body. The threaded bore has an annular groove the diameter of which is larger than the thread outer diameter, and which receives a ring of a deformable material with an inner diameter which is larger than the outer diameter of the thread of the bone screw so that the ring extends partially into the bore.
    Type: Application
    Filed: January 12, 2004
    Publication date: August 12, 2004
    Applicant: Stryker Trauma GmbH
    Inventors: Ronald Prager, Nils Zander