Patents by Inventor Stefan Volzow
Stefan Volzow 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).
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Patent number: 11957392Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An orthopedic screw includes an inner core member having a head having a first outer diameter, a tip having a second outer diameter, and a body extending between the head and the tip and having a third outer diameter that is less than the first outer diameter and the second outer diameter. An outer body member is disposed circumferentially around the body of the inner core member and defines an outer body member external thread. The tip of the inner core member can define an inner core member external thread that forms an interrupted thread with the outer body member external thread.Type: GrantFiled: February 18, 2022Date of Patent: April 16, 2024Assignee: GLW, Inc.Inventors: Thomas Hoon Lee, Axel Cremer, Klaus Dorawa, Christian Lutz, Stefan Völzow, Lowell Weil, Jr.
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Patent number: 11826083Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An intramedullary rod includes a head member, a shaft member partially disposed within a distal recess of the head member, and an outer body member disposed circumferentially around the shaft member and a portion of the head member. Medical device systems and methods of manufacturing medical devices are also described.Type: GrantFiled: April 6, 2020Date of Patent: November 28, 2023Assignee: GLW, Inc.Inventors: Steven Saam Sands, Christian Lutz, Axel Cremer, Stefan Völzow, Klaus Dorawa
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Publication number: 20220168034Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An orthopedic screw includes an inner core member having a head having a first outer diameter, a tip having a second outer diameter, and a body extending between the head and the tip and having a third outer diameter that is less than the first outer diameter and the second outer diameter. An outer body member is disposed circumferentially around the body of the inner core member and defines an outer body member external thread. The tip of the inner core member can define an inner core member external thread that forms an interrupted thread with the outer body member external thread.Type: ApplicationFiled: February 18, 2022Publication date: June 2, 2022Applicant: GLW, Inc.Inventors: Thomas Hoon Lee, Axel Cremer, Klaus Dorawa, Christian Lutz, Stefan Völzow, Lowell Weil, JR.
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Patent number: 11253304Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An orthopedic screw includes an inner core member having a head having a first outer diameter, a tip having a second outer diameter, and a body extending between the head and the tip and having a third outer diameter that is less than the first outer diameter and the second outer diameter. An outer body member is disposed circumferentially around the body of the inner core member and defines an outer body member external thread. The tip of the inner core member can define an inner core member external thread that forms an interrupted thread with the outer body member external thread.Type: GrantFiled: January 3, 2019Date of Patent: February 22, 2022Assignee: GLW, Inc.Inventors: Thomas Hoon Lee, Axel Cremer, Klaus Dorawa, Christian Lutz, Stefan Völzow, Lowell Weil, Jr.
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Publication number: 20200229851Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An intramedullary rod includes a head member, a shaft member partially disposed within a distal recess of the head member, and an outer body member disposed circumferentially around the shaft member and a portion of the head member. Medical device systems and methods of manufacturing medical devices are also described.Type: ApplicationFiled: April 6, 2020Publication date: July 23, 2020Applicant: GLW, Inc.Inventors: Steven Saam Sands, Christian Lutz, Axel Cremer, Stefan Völzow, Klaus Dorawa
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Patent number: 10610270Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An intramedullary rod includes a head member, a shaft member partially disposed within a distal recess of the head member, and an outer body member disposed circumferentially around the shaft member and a portion of the head member. Medical device systems and methods of manufacturing medical devices are also described.Type: GrantFiled: January 15, 2019Date of Patent: April 7, 2020Assignee: GLW, Inc.Inventors: Steven Saam Sands, Christian Lutz, Axel Cremer, Stefan Völzow, Klaus Dorawa
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Publication number: 20190216513Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An intramedullary rod includes a head member, a shaft member partially disposed within a distal recess of the head member, and an outer body member disposed circumferentially around the shaft member and a portion of the head member. Medical device systems and methods of manufacturing medical devices are also described.Type: ApplicationFiled: January 15, 2019Publication date: July 18, 2019Inventors: Steven Saam Sands, Christian Lutz, Axel Cremer, Stefan Völzow, Klaus Dorawa
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Publication number: 20190209220Abstract: The disclosure relates to medical devices and methods of manufacturing medical devices. An orthopedic screw includes an inner core member having a head having a first outer diameter, a tip having a second outer diameter, and a body extending between the head and the tip and having a third outer diameter that is less than the first outer diameter and the second outer diameter. An outer body member is disposed circumferentially around the body of the inner core member and defines an outer body member external thread. The tip of the inner core member can define an inner core member external thread that forms an interrupted thread with the outer body member external thread.Type: ApplicationFiled: January 3, 2019Publication date: July 11, 2019Inventors: Thomas Hoon Lee, Axel Cremer, Klaus Dorawa, Christian Lutz, Stefan Völzow, Lowell Weil, JR.
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Patent number: 9308004Abstract: A targeting device for targeting a cross bore in a bone nail has an arm member coupled to an end portion of the bone nail and an aiming portion forming part of the arm member extending parallel to a longitudinal axis of the bone nail. An adjustable aiming device is mounted on the aiming portion, the adjustable device having a guide bore alignable with the cross bore in the nail. The adjustable device is moveable with respect to the aiming portion in a direction perpendicular to a plane containing both the nail longitudinal axis and central axis of the cross bore. A target indicator is mounted on the adjustable aiming device. The target indicator has a radiolucent body including first and second spaced parallel planar portions each having a spaced radiopaque element therein.Type: GrantFiled: January 21, 2014Date of Patent: April 12, 2016Assignee: Stryker European Holdings I, LLCInventors: Helge Giersch, Klaus Dorawa, Bernd Simon, Stefan Völzow
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Publication number: 20140163571Abstract: A targeting device for targeting a cross bore in a bone nail has an arm member coupled to an end portion of the bone nail and an aiming portion forming part of the arm member extending parallel to a longitudinal axis of the bone nail. An adjustable aiming device is mounted on the aiming portion, the adjustable device having a guide bore alignable with the cross bore in the nail. The adjustable device is moveable with respect to the aiming portion in a direction perpendicular to a plane containing both the nail longitudinal axis and central axis of the cross bore. A target indicator is mounted on the adjustable aiming device. The target indicator has a radiolucent body including first and second spaced parallel planar portions each having a spaced radiopaque element therein.Type: ApplicationFiled: January 21, 2014Publication date: June 12, 2014Applicant: STRYKER TRAUMA GMBHInventors: Helge Giersch, Klaus Dorawa, Bernd Simon, Stefan Völzow
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Patent number: 8685034Abstract: A targeting device for targeting a cross bore in a bone nail has an arm member coupled to an end portion of the bone nail and an aiming portion forming part of the arm member extending parallel to a longitudinal axis of the bone nail. An adjustable aiming device is mounted on the aiming portion, the adjustable device having a guide bore alignable with the cross bore in the nail. The adjustable device is moveable with respect to the aiming portion in a direction perpendicular to a plane containing both the nail longitudinal axis and central axis of the cross bore. A target indicator is mounted on the adjustable aiming device. The target indicator has a radiolucent body including first and second spaced parallel planar portions each having a spaced radiopaque element therein.Type: GrantFiled: November 7, 2006Date of Patent: April 1, 2014Assignee: Stryker Trauma GmbHInventors: Helge Giersch, Klaus Dorawa, Bernd Simon, Stefan Völzow
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Patent number: 8372085Abstract: 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: GrantFiled: April 18, 2008Date of Patent: February 12, 2013Assignee: Stryker Trauma GmbHInventors: Ronald Prager, Stefan Völzow
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Patent number: 8303593Abstract: A boring tool for a bone, particularly the proximal femur, which has an elongate shank having a cutting portion at the front end, and a portion to mount a rotary driving device at the rear end of the shank. The tool has an axial through bore for receiving a guide wire, wherein the shank, in a rear portion, has at least one radial aperture which is open to the axial bore.Type: GrantFiled: January 15, 2004Date of Patent: November 6, 2012Assignee: Stryker Trauma GmbHInventors: Bernd Simon, Stefan Volzow
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Patent number: 8142433Abstract: An intramedullary nail and targeting and/or nailing instrument are provided, whereby a connection end of the targeting and/or nailing instrument has an axially parallel protrusion and a connection end of the nail has an axially parallel recess in order to couple the targeting and/or nailing instrument. The coupling system couples the targeting/nailing instrument and nail in their rotational position when they contact axially and whereby a connector is also provided in order to connect the targeting and/or nailing instrument and the nail in an axially fixed but also releasable manner. The connection end of the targeting and/or nailing instrument has an end section that engages approximately in one end of the bore-hole section of the nail and the end section and bore-hole section have a deformable element for a releasable snap connection of the parts with the simultaneous contact of the axially parallel protrusion and the axially parallel recess.Type: GrantFiled: September 24, 2008Date of Patent: March 27, 2012Assignee: Stryker Trauma GmbHInventor: Stefan Völzow
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Patent number: 7815647Abstract: An intramedullary nail and targeting and/or nailing instrument are provided, whereby a connection end of the targeting and/or nailing instrument has an axially parallel protrusion and a connection end of the nail has an axially parallel recess in order to couple the targeting and/or nailing instrument. The coupling system couples the targeting/nailing instrument and nail in their rotational position when they contact axially and whereby a connector is also provided in order to connect the targeting and/or nailing instrument and the nail in an axially fixed but also releasable manner. The connection end of the targeting and/or nailing instrument has an end section that engages approximately in one end of the bore-hole section of the nail and the end section and bore-hole section have a deformable element for a releasable snap connection of the parts with the simultaneous contact of the axially parallel protrusion and the axially parallel recess.Type: GrantFiled: July 22, 2004Date of Patent: October 19, 2010Assignee: Stryker Trauma GmbHInventor: Stefan Völzow
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Publication number: 20090030418Abstract: An intramedullary nail and targeting and/or nailing instrument are provided, whereby a connection end of the targeting and/or nailing instrument has an axially parallel protrusion and a connection end of the nail has an axially parallel recess in order to couple the targeting and/or nailing instrument. The coupling system couples the targeting/nailing instrument and nail in their rotational position when they contact axially and whereby a connector is also provided in order to connect the targeting and/or nailing instrument and the nail in an axially fixed but also releasable manner. The connection end of the targeting and/or nailing instrument has an end section that engages approximately in one end of the bore-hole section of the nail and the end section and bore-hole section have a deformable element for a releasable snap connection of the parts with the simultaneous contact of the axially parallel protrusion and the axially parallel recess.Type: ApplicationFiled: September 24, 2008Publication date: January 29, 2009Applicant: Stryker Trauma GmbHInventor: Stefan Volzow
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Publication number: 20080243136Abstract: 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: ApplicationFiled: April 18, 2008Publication date: October 2, 2008Applicant: Stryker Trauma GmbHInventors: Ronald Prager, Stefan Volzow
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Publication number: 20080039857Abstract: A targeting device for targeting a cross bore in a bone nail has an arm member coupled to an end portion of the bone nail and an aiming portion forming part of the arm member extending parallel to a longitudinal axis of the bone nail. An adjustable aiming device is mounted on the aiming portion, the adjustable device having a guide bore alignable with the cross bore in the nail. The adjustable device is moveable with respect to the aiming portion in a direction perpendicular to a plane containing both the nail longitudinal axis and central axis of the cross bore. A target indicator is mounted on the adjustable aiming device. The target indicator has a radiolucent body including first and second spaced parallel planar portions each having a spaced radiopaque element therein.Type: ApplicationFiled: November 7, 2006Publication date: February 14, 2008Applicant: Stryker Trauma GmbHInventors: Helge Giersch, Klaus Dorawa, Bernd Simon, Stefan Volzow
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Publication number: 20050203520Abstract: An intramedullary nail and targeting and/or nailing instrument are provided, whereby a connection end of the targeting and/or nailing instrument has an axially parallel protrusion and a connection end of the nail has an axially parallel recess in order to couple the targeting and/or nailing instrument. The coupling system couples the targeting/nailing instrument and nail in their rotational position when they contact axially and whereby a connector is also provided in order to connect the targeting and/or nailing instrument and the nail in an axially fixed but also releasable manner. The connection end of the targeting and/or nailing instrument has an end section that engages approximately in one end of the bore-hole section of the nail and the end section and bore-hole section have a deformable element for a releasable snap connection of the parts with the simultaneous contact of the axially parallel protrusion and the axially parallel recess.Type: ApplicationFiled: July 22, 2004Publication date: September 15, 2005Applicant: Stryker Trauma GmbHInventor: Stefan Volzow
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Publication number: 20050115368Abstract: 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: ApplicationFiled: November 16, 2004Publication date: June 2, 2005Applicant: Stryker Trauma GmbHInventors: Ronald Prager, Stefan Volzow