Patents by Inventor Lutz Biedermann
Lutz Biedermann 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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Publication number: 20230149049Abstract: A polyaxial bone anchoring device includes a receiving part with a rod receiving portion defining a recess for receiving a rod, and a head receiving portion with a wall that defines an accommodation space for accommodating a head of an anchoring element, and a locking member positionable at least partially around the head receiving portion and movable from a first position where the head can pivot in the accommodation space to a second position where an angular position of the head is locked. The wall of the head receiving portion further defines at least one cavity in communication with the accommodation space that reduces a radial thickness of at least part of the wall located between the accommodation space and the locking member, and at least part of the cavity is separated radially from the accommodation space by a portion of the wall.Type: ApplicationFiled: November 18, 2022Publication date: May 18, 2023Inventors: Timo BIEDERMANN, Lutz BIEDERMANN, Berthold DANNECKER, Bernd FISCHER
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Patent number: 11638597Abstract: A coupling device is provided for coupling a rod to a bone anchoring element. The coupling device includes a receiving part having a first end, a second end, a central axis extending through the first end and the second end, and a channel for receiving a rod. The receiving part defines an accommodation space for accommodating a head of a bone anchoring element, the accommodation space having an opening for inserting the head. The coupling device further includes a pressure element arranged at least partially in the accommodation space, the pressure element having a flexible portion to clamp an inserted head, and a clamping element extending at least partially around the flexible portion of the pressure element. The clamping element is configured to move from a first position to a second position in which the clamping element exerts a clamping force onto the pressure element, where the movement includes rotating the clamping element around the central axis.Type: GrantFiled: August 18, 2020Date of Patent: May 2, 2023Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KGInventors: Lutz Biedermann, Timo Biedermann, Wilfried Matthis
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Patent number: 11617608Abstract: A coupling assembly for coupling a rod to a bone anchoring element includes a receiving part having a first end, a second end, a recess having a bottom for receiving the rod, and an accommodation space having an opening at the second end of the receiving part for accommodating a head of the bone anchoring element, and a retainer element configured to be inserted into the receiving part from the first end and to hold at least part of the head, the retainer element having a first portion and a spring portion compressible in an axial direction attached to the first portion. When the retainer element is in the accommodation space in a first position, the spring portion extends in the axial direction from the first portion of the retainer element to an axial position between the first end of the receiving part and the bottom of the recess.Type: GrantFiled: June 18, 2020Date of Patent: April 4, 2023Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KGInventors: Lutz Biedermann, Achim Schünemann, Dimosthenis Dandanopoulos
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Publication number: 20230093687Abstract: 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: ApplicationFiled: September 29, 2022Publication date: March 23, 2023Inventors: Lutz Biedermann, Timo Biedermann, Wilfried Matthis, Berthold Dannecker
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Patent number: 11602377Abstract: A bone anchoring device includes a receiving part with a head receiving portion defining a seat for pivotably receiving a head of a bone anchor, and a rod receiving portion defining a recess for receiving a rod, the recess forming two legs each having an engagement surface for engaging a locking device to lock the rod in the recess, and an expansion limiting member having a surface configured to engage a portion of the receiving part spaced apart from the engagement surfaces of the legs. When the legs are urged radially outwardly, the head receiving portion is urged radially inwardly to compress and lock the head. The expansion limiting member is adjustable from a first configuration relative to the receiving part where the head receiving portion is expandable to permit the insertion of the head, to a second configuration where expansion of the head receiving portion is restricted.Type: GrantFiled: November 5, 2020Date of Patent: March 14, 2023Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KGInventors: Lutz Biedermann, Bernd Fischer
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Patent number: 11576708Abstract: A polyaxial bone anchoring device includes a receiving part having a longitudinal axis, a channel for receiving a rod, and an accommodation space for pivotably holding a head of a bone anchoring element, and a pressure member configured to be positioned in the receiving part and to exert pressure onto the head to lock the head in the receiving part. The pressure member includes a pressure exerting surface and a deformable portion having a free end, wherein the deformable portion is configured to assume at least a first configuration and a second configuration. The polyaxial bone anchoring device further includes a locking member configured to be inserted into the channel and to exert a force onto the deformable portion.Type: GrantFiled: November 17, 2020Date of Patent: February 14, 2023Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KGInventors: Lutz Biedermann, Achim Schünemann, Dimosthenis Dandanopoulos, Wilfried Matthis
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Patent number: 11564715Abstract: A polyaxial bone anchoring device includes a receiving part with a rod receiving portion defining a recess for receiving a rod, and a head receiving portion with a wall that defines an accommodation space for accommodating a head of an anchoring element, and a locking member positionable at least partially around the head receiving portion and movable from a first position where the head can pivot in the accommodation space to a second position where an angular position of the head is locked. The wall of the head receiving portion further defines at least one cavity in communication with the accommodation space that reduces a radial thickness of at least part of the wall located between the accommodation space and the locking member, and at least part of the cavity is separated radially from the accommodation space by a portion of the wall.Type: GrantFiled: April 14, 2022Date of Patent: January 31, 2023Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KGInventors: Timo Biedermann, Lutz Biedermann, Berthold Dannecker, Bernd Fischer
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Publication number: 20220395307Abstract: A polyaxial bone anchoring device includes a receiving part configured to be pivotably connected to a head of an anchoring element, the receiving part having a channel for receiving a rod and an accommodation space having an opening for accommodating the head, and a sleeve-like insert piece having a sleeve axis and a spherical segment-shaped outer surface portion. The insert piece is configured to be positioned around a portion of the head in the receiving part and to pivot in the receiving part, and includes a first part and a separable second part configured to be connected with the first part by a connection structure configured to permit translational movement between the first part and the second part in a direction transverse to the sleeve axis, while preventing movement between the first part and the second part in a direction parallel to the sleeve axis.Type: ApplicationFiled: June 24, 2022Publication date: December 15, 2022Inventors: Lutz Biedermann, Martin Meer
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Publication number: 20220395299Abstract: An anchoring element includes a shank for anchoring to bone and a separate head that is connectable to the shank. The head has an exterior surface with a spherically-shaped section and an unthreaded tool engagement surface that is engageable with a drive tool when the head and the shank are connected to one another.Type: ApplicationFiled: June 24, 2022Publication date: December 15, 2022Inventors: Lutz BIEDERMANN, Timo BIEDERMANN, Berthold DANNECKER, Bernd FISCHER
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Patent number: 11510705Abstract: A receiving part of a bone anchoring device is provided, where the receiving part includes a first end, a second end opposite to the first end, a central axis extending through the first end and the second end, and a substantially U-shaped-recess adjacent to the first end for receiving a spinal fixation element. The substantially U-shaped recess forms two free legs. The receiving part also includes a bore extending from the first end towards the second end and in communication with the substantially U-shaped recess. A groove is provided in an outer surface of each of the legs, where the groove has a first end and a second end and extends in a circumferential direction in an arcuate shape between the first end of the groove and the second end of the groove.Type: GrantFiled: March 3, 2020Date of Patent: November 29, 2022Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KGInventors: Lutz Biedermann, Timo Biedermann, Wilfried Matthis
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Publication number: 20220346848Abstract: A bone screw includes a shank having a longitudinal axis, a tip configured to be inserted first into bone, a core, and a thread with a plurality of turns winding in a helix around at least part of the core to engage bone. The thread has a lower flank and an upper flank, wherein for a first section of the thread, the upper and lower flanks form a first angle for at least one full turn, and wherein for a second section of the thread, the upper and lower flanks form a second angle for at least one full turn that is greater than the first angle. An outer diameter of the second section adjacent to the first section is at least as wide as an outer diameter of the first section adjacent to the second section.Type: ApplicationFiled: April 27, 2022Publication date: November 3, 2022Inventors: Lutz BIEDERMANN, Timo BIEDERMANN, Berthold DANNECKER
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Patent number: 11484347Abstract: 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: GrantFiled: July 23, 2020Date of Patent: November 1, 2022Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KGInventors: Lutz Biedermann, Timo Biedermann, Wilfried Matthis, Berthold Dannecker
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Publication number: 20220330988Abstract: A polyaxial bone anchoring device includes a receiving part with a rod receiving portion defining a recess for receiving a rod, and a head receiving portion with a wall that defines an accommodation space for accommodating a head of an anchoring element, and a locking member positionable at least partially around the head receiving portion and movable from a first position where the head can pivot in the accommodation space to a second position where an angular position of the head is locked. The wall of the head receiving portion further defines at least one cavity in communication with the accommodation space that reduces a radial thickness of at least part of the wall located between the accommodation space and the locking member, and at least part of the cavity is separated radially from the accommodation space by a portion of the wall.Type: ApplicationFiled: April 14, 2022Publication date: October 20, 2022Inventors: Timo BIEDERMANN, Lutz BIEDERMANN, Berthold DANNECKER, Bernd FISCHER
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Patent number: 11432941Abstract: An intervertebral implant includes: a body with an upper wall configured to engage a first vertebral end plate and a lower wall configured to engage a second vertebral end plate, and a load transmitting part configured to transmit load between the upper wall and the lower wall; and the load transmitting part is configured to assume a compressed condition in which a distance between the upper wall and the lower wall defines a first height of the implant and an expanded condition in which the distance between the upper wall and the lower wall defines a second height of the implant that is greater than the first height; and the load transmitting part is attached to the upper wall at at least two first connecting locations and is attached to the lower wall at at least two second connecting locations and has substantially an X-shape in a front view of the implant; and the implant is made of a material that exhibits shape memory properties that permit the implant to remain in the compressed condition without outsidType: GrantFiled: June 9, 2016Date of Patent: September 6, 2022Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KGInventors: Lutz Biedermann, Timo Biedermann, Achim Zipse, Gael Dreher
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Patent number: 11406426Abstract: An anchoring element includes a shank for anchoring to bone and a separate head that is connectable to the shank. The head has an exterior surface with a spherically-shaped section and an unthreaded tool engagement surface that is engageable with a drive tool when the head and the shank are connected to one another.Type: GrantFiled: August 5, 2021Date of Patent: August 9, 2022Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KGInventors: Lutz Biedermann, Timo Biedermann, Berthold Dannecker, Bernd Fischer
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Patent number: 11389219Abstract: A polyaxial bone anchoring device includes a receiving part configured to be pivotably connected to a head of an anchoring element, the receiving part having a channel for receiving a rod and an accommodation space having an opening for accommodating the head, and a sleeve-like insert piece having a sleeve axis and a spherical segment-shaped outer surface portion. The insert piece is configured to be positioned around a portion of the head in the receiving part and to pivot in the receiving part, and includes a first part and a separable second part configured to be connected with the first part by a connection structure configured to permit translational movement between the first part and the second part in a direction transverse to the sleeve axis, while preventing movement between the first part and the second part in a direction parallel to the sleeve axis.Type: GrantFiled: June 18, 2020Date of Patent: July 19, 2022Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KGInventors: Lutz Biedermann, Martin Meer
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Publication number: 20220202452Abstract: 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: ApplicationFiled: January 6, 2022Publication date: June 30, 2022Inventors: Lutz Biedermann, Berthold Dannecker
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Publication number: 20220133361Abstract: A polyaxial bone anchoring device is provided comprising a bone anchoring element having a shank to be anchored in a bone and a head; a receiving part coupled to the shank and configured to pivotably receive the head, and having a channel for receiving a rod and a longitudinal axis; a pressure member configured to be positioned in the receiving part; a locking member insertable into the channel; wherein the pressure member has a deformable portion; and wherein, when the locking member is advanced into the channel in the direction of the longitudinal axis, the locking member in moveable from a position where it contacts the pressure member resulting in a load applied to the pressure member that clamps the head, to a position where the locking member contacts the pressure member such that the deformable portion is deformed and the locking member contacts the rod and clamps the rod.Type: ApplicationFiled: November 8, 2021Publication date: May 5, 2022Inventors: Lutz Biedermann, Bernd Fischer
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Publication number: 20220117633Abstract: A bone anchoring device includes an anchoring element having a shank and a head, a receiving part configured to pivotably receive the head, and a pressure member defining a head receiving recess for pivotably holding the head and having a portion configured to extend to a side opposite a free end of the head and to exert pressure on the side opposite the free end to clamp the head in the receiving part. The head has a first position indication structure configured to engage a second position indication structure of the pressure member when the shank assumes a first angular position, and to disengage from the second position indication structure when the shank is at an angular position different from the first angular position. The second position indication structure is engageable with the first position indication structure without protruding into a profile defined by the head receiving recess.Type: ApplicationFiled: October 28, 2021Publication date: April 21, 2022Inventors: Lutz Biedermann, Berthold Dannecker, Bernd Fischer
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Publication number: 20220096130Abstract: A receiving part for receiving a rod for coupling the rod to a bone anchoring element includes a receiving part body including a first end and a second end, and having a substantially U-shaped recess at the first end forming a channel for receiving the rod, and an accommodation space for accommodating a head of the bone anchoring element, the accommodation space having an opening at the second end for introducing the head; and a pressure element arranged at least partially in the accommodation space, the pressure element including a first section having a second recess for receiving the rod, and a second section having a flexible portion to clamp the head, the first section and the second section being fixed relative to each other, wherein said pressure element is insertable from the opening.Type: ApplicationFiled: October 4, 2021Publication date: March 31, 2022Inventors: Lutz Biedermann, Wilfried Matthis