Patents by Inventor Berthold Dannecker

Berthold Dannecker 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: 20210169529
    Abstract: A coupling device for coupling a rod to a bone anchor includes a receiving part having a central axis, a coaxial passage, and an engagement recess extending laterally into the passage, and a pressure member having an expandable portion to clamp the head, a radially outwardly facing surface, and an engagement surface extending from the radially outwardly facing surface. The engagement surface of the pressure member is recessed from an outer surface of the receiving part. The pressure member is movable axially from a first position towards a second position where the receiving part directly engages the pressure member to increase a compression force on the expandable portion for clamping an inserted head. The engagement surface of the pressure member is engageable through the engagement recess of the receiving part by the instrument to move the pressure member axially from the second position back towards the first position.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 10, 2021
    Inventors: Lutz Biedermann, Berthold Dannecker
  • Patent number: 10973554
    Abstract: A bone anchoring device includes a receiving part having a central axis, two legs defining a recess for receiving a rod, and a head receiving portion that is at least partially expandable and having an opening for inserting and pivotably holding a head of a bone anchoring element therein, and a locking ring mountable around the head receiving portion in an axial direction while a rotational orientation of the locking ring relative to the receiving part remains constant. When the locking ring is around the head receiving portion, the locking ring is rotatable around the central axis from a first rotational orientation to a second rotational orientation where a compressive force exerted by the locking ring on the head receiving portion is greater than at the first rotational orientation.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: April 13, 2021
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Timo Biedermann, Berthold Dannecker
  • Publication number: 20210015521
    Abstract: A bone anchoring device includes an anchoring element having a shank for anchoring in a bone and a head, a receiving part configured to pivotably receive the head, and a pressure member for exerting pressure on the head to clamp the head in the receiving part, the pressure member defining a head receiving recess for pivotably holding at least a portion of the head therein and comprising a first surface configured to restrict removal of the head from the head receiving recess. The head includes a first position indication structure configured to engage a second position indication structure of the bone anchoring device when the shank assumes a first angular position relative to the receiving part. The first and second position indication structures disengage from one another when the shank is moved out of the first angular position to a different angular position.
    Type: Application
    Filed: July 14, 2020
    Publication date: January 21, 2021
    Inventors: Timo Biedermann, Bernd Fischer, Berthold Dannecker
  • Publication number: 20210000513
    Abstract: A bone anchoring device includes a receiving part including a rod receiving portion with a first end, a second end, and a U-shaped recess for receiving a rod, the recess defining two free legs, and a head receiving portion at the second end for introducing and clamping the head, and a locking ring configured to be arranged around the head receiving portion, the locking ring including an engagement structure for engagement with a tool, the engagement structure defining a width of the locking ring that is greater than a greatest width of the rod receiving portion, wherein the locking ring can assume a locking position exerting a greatest compressive force on the head receiving portion of the receiving part to lock an inserted head, and wherein the locking ring is movable out of the locking position towards the first end of the rod receiving portion.
    Type: Application
    Filed: July 23, 2020
    Publication date: January 7, 2021
    Inventors: Lutz Biedermann, Timo Biedermann, Wilfried Matthis, Berthold Dannecker
  • Publication number: 20210000512
    Abstract: A bone anchoring device includes a receiving part with a recess for receiving a rod and a flexible head receiving portion for pivotably holding a head of a bone anchoring element, a pressure member configured to exert pressure on the head when the head is held in the head receiving portion, and a clamping ring positionable around the head receiving portion and movable from a first position where the head is pivotable relative to the receiving part, to a second position where the clamping ring exerts a radial force on the head receiving portion to lock the head relative to the receiving part. When the clamping ring is at the first position, the clamping ring abuts the receiving part to restrict upward movement, while a surface of the clamping ring that faces upwards is exposed for engaging an instrument to move the clamping ring to the second position.
    Type: Application
    Filed: July 15, 2020
    Publication date: January 7, 2021
    Inventors: Timo Biedermann, Berthold Dannecker
  • Publication number: 20200405355
    Abstract: A bone anchoring device includes a receiving part with a rod receiving portion having a first end, a second end, a recess for the rod, an outer surface, and a first engagement structure on the outer surface that extends farther radially outwardly than other parts of the rod receiving portion, and a flexible head receiving portion for inserting and clamping the head. The bone anchoring device also includes a locking ring configured to be arranged around the head receiving portion for locking the head, the locking ring having an outer surface and a second engagement structure on the outer surface that extends farther radially outwardly than the outer surface of the rod receiving portion. The engagement structures are configured to be engaged by an instrument to move the locking ring from a locking position to a position where the inserted head is pivotable.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 31, 2020
    Inventors: Timo Biedermann, Berthold Dannecker
  • Publication number: 20200337737
    Abstract: A closure assembly for securing an elongate stabilization element in a receiving part of a bone anchoring device includes a first closure member and a second closure member. The first closure member is receivable between legs of the receiving part, has an axis of rotation, and includes an outer surface with an engagement portion configured to engage the legs of the receiving part, and an inner surface having at least a portion that is threaded and that defines a central passage that passes axially through the first closure member. The second closure member has an axis of rotation and an outer surface having a threaded portion configured to cooperate with the threaded portion of the inner surface of the first closure member. The threaded portion of the outer surface of the second closure member includes a multi-start thread with at least two starts.
    Type: Application
    Filed: April 23, 2020
    Publication date: October 29, 2020
    Inventors: Timo Biedermann, Berthold Dannecker
  • Patent number: 10751090
    Abstract: A bone anchoring device includes a receiving part with a recess for receiving a rod and a flexible head receiving portion for pivotably holding a head of a bone anchoring element, a pressure member configured to exert pressure on the head when the head is held in the head receiving portion, and a clamping ring positionable around the head receiving portion and movable from a first position where the head is pivotable relative to the receiving part, to a second position where the clamping ring exerts a radial force on the head receiving portion to lock the head relative to the receiving part. When the clamping ring is at the first position, the clamping ring abuts the receiving part to restrict upward movement, while a surface of the clamping ring that faces upwards is exposed for engaging an instrument to move the clamping ring to the second position.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: August 25, 2020
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Timo Biedermann, Berthold Dannecker
  • Patent number: 10751092
    Abstract: A bone anchoring device includes a receiving part including a rod receiving portion with a first end, a second end, and a U-shaped recess for receiving a rod, the recess defining two free legs, and a head receiving portion at the second end for introducing and clamping the head, and a locking ring configured to be arranged around the head receiving portion, the locking ring including an engagement structure for engagement with a tool, the engagement structure defining a width of the locking ring that is greater than a greatest width of the rod receiving portion, wherein the locking ring can assume a locking position exerting a greatest compressive force on the head receiving portion of the receiving part to lock an inserted head, and wherein the locking ring is movable out of the locking position towards the first end of the rod receiving portion.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: August 25, 2020
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Lutz Biedermann, Timo Biedermann, Wilfried Matthis, Berthold Dannecker
  • Publication number: 20190254716
    Abstract: A bone anchoring device includes a receiving part with a rod receiving portion having a first end, a second end, a recess for the rod, an outer surface, and a first engagement structure on the outer surface that extends farther radially outwardly than other parts of the rod receiving portion, and a flexible head receiving portion for inserting and clamping the head. The bone anchoring device also includes a locking ring configured to be arranged around the head receiving portion for locking the head, the locking ring having an outer surface and a second engagement structure on the outer surface that extends farther radially outwardly than the outer surface of the rod receiving portion. The engagement structures are configured to be engaged by an instrument to move the locking ring from a locking position to a position where the inserted head is pivotable.
    Type: Application
    Filed: February 25, 2019
    Publication date: August 22, 2019
    Inventors: Timo Biedermann, Berthold Dannecker
  • Publication number: 20190192192
    Abstract: A bone anchoring device includes a receiving part having a central axis, two legs defining a recess for receiving a rod, and a head receiving portion that is at least partially expandable and having an opening for inserting and pivotably holding a head of a bone anchoring element therein, and a locking ring mountable around the head receiving portion in an axial direction while a rotational orientation of the locking ring relative to the receiving part remains constant. When the locking ring is around the head receiving portion, the locking ring is rotatable around the central axis from a first rotational orientation to a second rotational orientation where a compressive force exerted by the locking ring on the head receiving portion is greater than at the first rotational orientation.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 27, 2019
    Inventors: Timo Biedermann, Berthold Dannecker
  • Publication number: 20190125411
    Abstract: A bone anchoring device includes a receiving part including a rod receiving portion with a first end, a second end, and a U-shaped recess for receiving a rod, the recess defining two free legs, and a head receiving portion at the second end for introducing and clamping the head, and a locking ring configured to be arranged around the head receiving portion, the locking ring including an engagement structure for engagement with a tool, the engagement structure defining a width of the locking ring that is greater than a greatest width of the rod receiving portion, wherein the locking ring can assume a locking position exerting a greatest compressive force on the head receiving portion of the receiving part to lock an inserted head, and wherein the locking ring is movable out of the locking position towards the first end of the rod receiving portion.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 2, 2019
    Inventors: Lutz Biedermann, Timo Biedermann, Wilfried Matthis, Berthold Dannecker
  • Patent number: 10258383
    Abstract: A bone anchoring device includes a receiving part with a rod receiving portion having a first end, a second end, a recess for the rod, an outer surface, and a first engagement structure on the outer surface that extends farther radially outwardly than other parts of the rod receiving portion, and a flexible head receiving portion for inserting and clamping the head. The bone anchoring device also includes a locking ring configured to be arranged around the head receiving portion for locking the head, the locking ring having an outer surface and a second engagement structure on the outer surface that extends farther radially outwardly than the outer surface of the rod receiving portion. The engagement structures are configured to be engaged by an instrument to move the locking ring from a locking position to a position where the inserted head is pivotable.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: April 16, 2019
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Timo Biedermann, Berthold Dannecker
  • Publication number: 20180353213
    Abstract: A bone anchor includes a shank for anchoring to a bone and a receiving part for coupling a rod to the shank. The receiving part includes a base and two legs each including a first portion extending away from the base, and a second portion extending from the first portion further away from the base, and an elongate extension member extending from the second portion still further away from the base. An internal engagement structure is provided on the first and second portions for engaging a fixation device. A breakaway portion facilitates breaking away of the second portion. The extension members are at least as long as the second portions. The second portions are stiffer than a region of the extension members adjacent the second portions.
    Type: Application
    Filed: June 11, 2018
    Publication date: December 13, 2018
    Inventors: Timo Biedermann, Berthold Dannecker
  • Patent number: 10136922
    Abstract: A bone anchoring device includes a receiving part including a rod receiving portion with a first end, a second end, and a U-shaped recess for receiving a rod, the recess defining two free legs, and a head receiving portion at the second end for introducing and clamping the head, and a locking ring configured to be arranged around the head receiving portion, the locking ring including an engagement structure for engagement with a tool, the engagement structure defining a width of the locking ring that is greater than a greatest width of the rod receiving portion, wherein the locking ring can assume a locking position exerting a greatest compressive force on the head receiving portion of the receiving part to lock an inserted head, and wherein the locking ring is movable out of the locking position towards the first end of the rod receiving portion.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: November 27, 2018
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Lutz Biedermann, Timo Biedermann, Wilfried Matthis, Berthold Dannecker
  • Patent number: 9999451
    Abstract: An extension device for a bone anchor includes at least one tab, which includes an elongate shaft portion that forms part of a channel for providing a stabilization rod to a rod receiving recess of a receiving part of the bone anchor, and a coupling portion, which is provided at a distal end of the elongate shaft portion and which is configured to be coupled to the receiving part. The coupling portion includes a first engagement portion for engaging a first engagement face of the receiving part and a second engagement portion for engaging a second engagement face of the receiving part. A spring element is provided at the coupling portion, the spring element exerting a compression force to urge the first and second engagement portions in mutually opposite directions towards each other and towards the corresponding first and second engagement faces along a longitudinal axis defined by the extension device and the receiving part when being coupled together.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: June 19, 2018
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Timo Biedermann, Berthold Dannecker
  • Patent number: 9956012
    Abstract: An extension device for a bone anchor is provided, where the bone anchor includes an anchoring section and a receiving part connected to the anchoring section having a central axis. The extension device includes a first sleeve with a first sleeve axis that is coaxial to the central axis of the receiving part and is configured to be coupled to and decoupled from the receiving part. The extension device further includes a second sleeve with a second sleeve axis coaxial to the central axis. The second sleeve is positioned within the first sleeve, is positionable relative to the first sleeve along the central axis, and is configured to be coupled to and decoupled from the receiving part. The extension device also includes a locking member that, in a first configuration, inhibits decoupling of the first sleeve or the second sleeve from the receiving part when the other one of the first sleeve or the second sleeve is coupled to the receiving part.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: May 1, 2018
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Timo Biedermann, Berthold Dannecker
  • Patent number: 9907578
    Abstract: A bone anchoring element includes an anchoring section for anchoring in the bone and a receiving part connected to the anchoring section. The receiving part includes an opening suitable for accommodation of a stabilization rod having a rod axis, the opening being limited along the rod axis by two side walls. The side walls include guides orientated along the rod axis for guiding at least one connection rod therethrough.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: March 6, 2018
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Lutz Biedermann, J├╝rgen Harms, Helmar Rapp, Berthold Dannecker
  • Publication number: 20180036039
    Abstract: A bone anchoring device includes a receiving part with a recess for receiving a rod and a flexible head receiving portion for pivotably holding a head of a bone anchoring element, a pressure member configured to exert pressure on the head when the head is held in the head receiving portion, and a clamping ring positionable around the head receiving portion and movable from a first position where the head is pivotable relative to the receiving part, to a second position where the clamping ring exerts a radial force on the head receiving portion to lock the head relative to the receiving part. When the clamping ring is at the first position, the clamping ring abuts the receiving part to restrict upward movement, while a surface of the clamping ring that faces upwards is exposed for engaging an instrument to move the clamping ring to the second position.
    Type: Application
    Filed: August 4, 2017
    Publication date: February 8, 2018
    Inventors: Timo Biedermann, Berthold Dannecker
  • Publication number: 20170319239
    Abstract: A bone anchoring device includes a receiving part including a rod receiving portion with a first end, a second end, and a U-shaped recess for receiving a rod, the recess defining two free legs, and a head receiving portion at the second end for introducing and clamping the head, and a locking ring configured to be arranged around the head receiving portion, the locking ring including an engagement structure for engagement with a tool, the engagement structure defining a width of the locking ring that is greater than a greatest width of the rod receiving portion, wherein the locking ring can assume a locking position exerting a greatest compressive force on the head receiving portion of the receiving part to lock an inserted head, and wherein the locking ring is movable out of the locking position towards the first end of the rod receiving portion.
    Type: Application
    Filed: May 16, 2017
    Publication date: November 9, 2017
    Inventors: Lutz Biedermann, Timo Biedermann, Wilfried Matthis, Berthold Dannecker