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公开(公告)号：US20240350177A1
公开(公告)日：2024-10-24
申请号：US18654633
申请日：2024-05-03
发明人： Lutz Biedermann , Wilfried Matthis , Martin Meer
IPC分类号： A61B17/70
CPC分类号： A61B17/7037 , Y10T29/49826
摘要： A bone anchoring device includes an anchoring element having a shaft and a head, a receiving part having a coaxial bore and a seat for receiving the head, a pressure element configured to be movable within the bore, and a preload element being positionable between the head and the pressure element. When the head is inserted in the receiving part, the head is pivotable with respect to the receiving part, and can be locked at an angle relative to the receiving part by the pressure element. The pressure element can assume a position relative to the receiving part where the pressure element and the preload element are in direct contact, and where the pressure element exerts a force onto the head via the preload element to maintain one of a plurality of releasable angular positions between the head and the receiving part by friction before locking the head.
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公开(公告)号：US20240341821A1
公开(公告)日：2024-10-17
申请号：US18650821
申请日：2024-04-30
CPC分类号： A61B17/708 , A61B2017/00486 , A61B2017/564 , A61B17/7035
摘要： An adapter device for connecting an instrument to a bone anchor includes an elongate main portion having a longitudinal axis, a first end with a surface that is directly engageable with a head of the bone anchor, an opposite second end, and a channel that extends longitudinally through the main portion, and a holding member having an inner surface forming a seat for the head. The holding member is movable over a majority of the main portion, and is configured to be held at a position where a first portion of the seat is directed towards the second end of the main portion to hold the head in the seat against the first end of the main portion, while the holding member engages another part of the adapter device to keep the first portion of the seat spaced apart axially from the first end of the main portion.
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公开(公告)号：US12096962B2
公开(公告)日：2024-09-24
申请号：US17956575
申请日：2022-09-29
IPC分类号： A61B17/70
CPC分类号： A61B17/7035 , A61B17/7076
摘要： 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.
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公开(公告)号：US12089878B2
公开(公告)日：2024-09-17
申请号：US17465527
申请日：2021-09-02
发明人： Lutz Biedermann , Bernd Fischer
IPC分类号： A61B17/70
CPC分类号： A61B17/7037 , A61B17/7032
摘要： A bone anchoring device includes a receiving part configured to pivotably receive a head of an anchoring element, a pressure member positionable and movable in the receiving part, and an insert member positionable at least partially in the pressure member and movable axially relative to the pressure member between a first position and a second position for exerting an adjustable pressure on the head of the anchoring element. A first engagement structure of the insert member that has at least one of an upwardly facing engagement surface or a downwardly facing engagement surface is configured to engage a second engagement structure of the pressure member to releasably hold the insert member at the first position against movement towards the second position and to releasably hold the insert member at the second position against movement towards the first position.
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5.发明授权公开(公告)号：US12042182B2
公开(公告)日：2024-07-23
申请号：US18298597
申请日：2023-04-11
CPC分类号： A61B17/68 , A61B2017/00526 , A61B2017/564
摘要： A coupling device includes a receiving part with an accommodation space for accommodating a head of a bone anchoring element, an opening, and a recess forming two legs for receiving a rod, and a pressure member arranged at least partially in the accommodation space. The pressure member is adjustable from a first configuration where a topmost end of the pressure member is at a first axial position and the head is pivotable in the accommodation space to a second configuration where the topmost end of the pressure member is at a second axial position below the first axial position and the pressure member provisionally lock the heads. At the second configuration, a latching connection is formed to prevent the pressure member from being adjusted back towards the first configuration. The latching connection is releasable to adjust the pressure member from the second configuration back towards the first configuration.
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公开(公告)号：US20240189110A1
公开(公告)日：2024-06-13
申请号：US18391279
申请日：2023-12-20
发明人： Lutz Biedermann , Wilfried Matthis , Helmar Rapp
IPC分类号： A61F2/44 , A61B17/70 , A61B17/72 , A61B17/80 , A61F2/28 , A61F2/30 , G02F1/1343 , G02F1/1345 , H01L27/12 , H01L29/45 , H01L29/49
CPC分类号： A61F2/442 , A61F2/44 , A61F2/4465 , G02F1/13439 , G02F1/13458 , A61B17/7001 , A61B17/72 , A61B17/80 , A61F2002/2825 , A61F2002/30115 , A61F2002/30126 , A61F2002/30131 , A61F2002/30133 , A61F2002/30143 , A61F2002/30146 , A61F2002/30148 , A61F2002/30153 , A61F2002/30154 , A61F2002/30156 , A61F2002/30235 , A61F2002/30433 , A61F2002/30451 , A61F2002/30485 , A61F2002/30492 , A61F2002/30507 , A61F2002/3055 , A61F2002/30593 , A61F2002/30601 , A61F2002/30672 , A61F2/30767 , A61F2002/30787 , A61F2002/30841 , A61F2002/30912 , A61F2002/3097 , A61F2/4455 , A61F2220/0025 , A61F2220/0041 , A61F2220/0058 , A61F2230/0006 , A61F2230/0008 , A61F2230/0013 , A61F2230/0015 , A61F2230/0017 , A61F2230/0019 , A61F2230/0021 , A61F2230/0023 , A61F2230/0069 , A61F2310/00023 , A61F2310/00796 , H01L27/12 , H01L27/124 , H01L29/458 , H01L29/4908
摘要： A placeholder for vertebrae or vertebral discs includes a tubular body, which along its jacket surface has a plurality of breakthroughs or openings for over-growth with adjacent tissue. The placeholder includes at least a second tubular body provided with a plurality of breakthroughs and openings at least partially inside the first tubular body. The first and second tubular bodies can have different cross-sectional shapes, can be are arranged inside one another by press fit or force fit or can be connected to each other via connecting pins and arranged side by side to one another in the first body.
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公开(公告)号：US20240108382A1
公开(公告)日：2024-04-04
申请号：US18486958
申请日：2023-10-13
发明人： Lutz BIEDERMANN , Bernd FISCHER , Wilfried MATTHIS
IPC分类号： A61B17/70
CPC分类号： A61B17/7037 , A61B17/7032 , A61B2017/00477
摘要： A coupling assembly for coupling a rod to a bone anchoring element is provided, wherein the coupling assembly includes a receiving part having a first end, a second end, a central axis extending through the first end and second end, an accommodation space for accommodating a head of an anchoring element, a bore extending from the accommodation space to the first end, and a recess for receiving a rod. The accommodation space has an opening at the second end sized to permit insertion of a head of the bone anchoring element. The coupling assembly further includes a retainer element configured to be positioned at least partially in the accommodation space and being radially expandable and/or compressible to allow retaining a head inserted through the opening. The retainer element is held in position adjacent the opening by an engagement structure provided at or in the accommodation space. The coupling assembly further includes a locking element configured to be arranged at least partially in the accommodation space. The locking element is movable from a first position, in which the retainer element is allowed to expand acid release an inserted head, to a second position, in which radial expansion of the retainer element is hindered to present release of an inserted head. When the locking element is in the second position, a head of an liming element can be locked by exertion of a pressure force directly onto the head to press the head against the retainer element.
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公开(公告)号：US11937852B2
公开(公告)日：2024-03-26
申请号：US17404239
申请日：2021-08-17
发明人： Lutz Biedermann , Wilfried Matthis , Tobias Hägle
IPC分类号： A61B17/70
CPC分类号： A61B17/7037 , A61B17/7035
摘要： A polyaxial bone anchoring device includes: an anchoring element having a shaft for anchoring in a bone and a head, the head having a spherically-shaped outer surface portion; a receiving part configured to be pivotably connected to the head, the receiving part having a top end and a bottom end, a longitudinal axis extending through the top end and the bottom end, a channel transverse to the longitudinal axis for receiving a rod, and an accommodation space for accommodating the head, the accommodation space having a lower opening at the bottom end, a sleeve-like insert piece configured to be positioned around a portion of the head and to pivot in the receiving part, the insert piece having a spherically-shaped outer surface portion, wherein a lower edge of the insert piece extends past the lower opening in a direction away from the receiving part when the insert piece is seated in the receiving part in a position in which a central axis of the insert piece is coaxial with the longitudinal axis, and wherein the insert piece has an opening with a diameter greater than or equal to a maximum diameter of the head when the head is not in contact with the insert piece; a pressure member configured to be arranged at least partially in the accommodation space, the pressure member having a lower surface portion configured to contact the head to exert pressure onto the head when the head and the pressure member are arranged in the receiving part; wherein when the head, the insert piece, and the pressure member are arranged in the receiving part, the insert piece is tiltable with respect to the longitudinal axis of the receiving part and with respect to a longitudinal axis of the anchoring element, and wherein the anchoring element and the insert piece can be locked at respective angles relative to the longitudinal axis of the receiving part by exerting pressure with the pressure member onto the head.
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公开(公告)号：US11931076B2
公开(公告)日：2024-03-19
申请号：US17521420
申请日：2021-11-08
发明人： Lutz Biedermann , Bernd Fischer
IPC分类号： A61B17/70
CPC分类号： A61B17/7032 , A61B17/7035 , A61B17/7037
摘要： 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.
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10.发明公开公开(公告)号：US20240032973A1
公开(公告)日：2024-02-01
申请号：US18446266
申请日：2023-08-08
IPC分类号： A61B17/70
CPC分类号： A61B17/7038 , A61B17/7032 , A61B17/7037 , A61B2017/564
摘要： A coupling device for use with a bone anchoring element includes a receiving part having first and second ends, a longitudinal axis, and a coaxial passage, and a pressure member having a first portion and an expandable portion connected axially to the first portion forming a seat for the head. The pressure member is movable to a position where the receiving part acts on the expandable portion to clamp the head in the seat. The seat can be asymmetric relative to the longitudinal axis while a central axis of the first portion is coaxial with the longitudinal axis, such that the seat facilitates pivoting of the bone anchoring element in a first direction to a first maximum angle and in an opposite direction to a second maximum angle smaller than the first maximum angle.
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