Source: http://www.google.com/patents/US20070225708?dq=7350717
Timestamp: 2016-05-04 14:49:12
Document Index: 526134502

Matched Legal Cases: ['art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'arts 3', 'arts 3', 'arts 3', 'art 3', 'art 3', 'art 3', 'arts 3', 'arts 3', 'art 3', 'art 3', 'art 3', 'art 3']

Patent US20070225708 - Dynamic stabilization device for bones or vertebrae - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA dynamic stabilization device for bones or vertebrae is provided which includes at least two bone anchoring elements, at least one connection element, connecting the bone anchoring elements. Each bone anchoring element includes a shank portion to be anchored in the bone or in the vertebra and a head...http://www.google.com/patents/US20070225708?utm_source=gb-gplus-sharePatent US20070225708 - Dynamic stabilization device for bones or vertebraeAdvanced Patent SearchPublication numberUS20070225708 A1Publication typeApplicationApplication numberUS 11/645,325Publication dateSep 27, 2007Filing dateDec 21, 2006Priority dateDec 23, 2005Also published asCN1985771A, CN1985771B, DE602005012980D1, EP1800614A1, EP1800614B1, EP2055251A1, EP2055251B1, US8192468, US8979902, US20120283779Publication number11645325, 645325, US 2007/0225708 A1, US 2007/225708 A1, US 20070225708 A1, US 20070225708A1, US 2007225708 A1, US 2007225708A1, US-A1-20070225708, US-A1-2007225708, US2007/0225708A1, US2007/225708A1, US20070225708 A1, US20070225708A1, US2007225708 A1, US2007225708A1InventorsLutz Biedermann, Wilfried Matthis, Helmar RappOriginal AssigneeLutz Biedermann, Wilfried Matthis, Helmar RappExport CitationBiBTeX, EndNote, RefManPatent Citations (57), Referenced by (54), Classifications (7), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetDynamic stabilization device for bones or vertebrae
US 20070225708 A1Abstract
A dynamic stabilization device for bones or vertebrae is provided which includes at least two bone anchoring elements, at least one connection element, connecting the bone anchoring elements. Each bone anchoring element includes a shank portion to be anchored in the bone or in the vertebra and a head portion to be connected with the connection element. The connection element is at least partly elastic and has at least one loop section. The head portion includes a recess with an opening for inserting the loop section. A securing element is provided for securing the loop section in the recess. The connection element is preferably in the form of an endless loop made of an elastomeric material. Images(6) Claims(22)
1. A dynamic stabilization device for bones or vertebrae comprising: at least two bone anchoring elements; at least one connection element connecting the bone anchoring elements, each bone anchoring element having a shank portion to be anchored in the bone or in the vertebra and a head portion to be connected with the connection element; wherein the connection element is at least partly elastic and has at least one loop; and wherein the head portion comprises a recess with an opening for inserting the loop and a securing element is provided for securing the loop in the recess. 2. The dynamic stabilization device according to claim 1, wherein the connection element is an endless loop comprising an elastomer material. 3. The dynamic stabilization device according to claim 1, wherein the recess has an inner wall comprising an inner thread and the securing element is a screw to be screwed into the recess. 4. The dynamic stabilization device according to claim 1, wherein a pressure element is provided between the securing element and the loop to exert a pressure onto the loop via the action of the securing element. 5. The dynamic stabilization device according to claim 1, wherein the recess is shaped so as to accommodate a single loop. 6. The dynamic stabilization device according to claim 1, wherein the recess is shaped so as to accommodate at least two loops. 7. The dynamic stabilization device according to claim 1, wherein the shank portion and the head portion are rigidly connected. 8. The dynamic stabilization device according to claim 1, wherein the shank portion and the head portion are pivotably connected. 9. The dynamic stabilization device according to claim 8, wherein the shank portion has a spherically shaped head which is pivotably held in the head portion. 10. The dynamic stabilization device according to claim 8, wherein a first pressure element and a second pressure element is provided which encompass the loop in the recess and which are slideable in the recess such that when applying a pressure via the securing element an angular position of the shank is locked. 11. The dynamic stabilization device according to claim 9, wherein the first pressure element exerts a pressure on the spherically shaped head. 12. The dynamic stabilization device according to claim 1, wherein the cross-section of the loop is substantially circular. 13. The dynamic stabilization device according to claim 1, wherein the connection element is connected to two bone anchoring elements in a non-stressed condition. 14. The dynamic stabilization device of claim 1, wherein the recess is substantially U-shaped. 15. The dynamic stabilization device according to claim 1, wherein a part of the head portion penetrates the internal space of the loop. 16. The dynamic stabilization device according to claim 1, wherein the connection element is a single loop. 17. The dynamic stabilization device according to claim 1, wherein the connection element is a double loop having two closed loops and a central section therebetween. 18. A dynamic stabilization device for bones and vertebrae comprising: at least one connection element comprising an elastic material and including at least one loop; and at least two bone anchoring elements, each bone anchoring element comprising: a shank portion configured to be anchored in a bone or in a vertebra; a head portion having a recess including an opening, the recess configured to receive a portion of the loop of the connection element; a pressure element mountable in the recess over the portion of the loop of the connection element; and a securing element configured to secure the portion of the loop of the connection element in the recess by pressure exerted with the pressure element. 19. The dynamic stabilization device according to claim 18, wherein the recess and the pressure element are shaped so as to accommodate at least two loops. 20. The dynamic stabilization device according to claim 18, wherein the shank portion and the head portion are pivotably connected. 21. The dynamic stabilization device according to claim 20, further comprising a second pressure element configured to mount under the portion of the loop of the connection element in the recess, wherein securing the securing element further exerts pressure on the second pressure element to lock an angular position of the shank relative to the head portion. 22. The dynamic stabilization device according to claim 18, wherein the connection element is a double loop having two closed loops and a central section therebetween.
CROSS-REFERENCE TO RELATED APPLICATION(S) [0001] The present disclosure claims the benefit of U.S. Provisional Patent Application Ser. No. 60/753,772, filed Dec. 23, 2005, and claims priority from European Patent Application EP05028284, filed Dec. 23, 2005, the entire disclosures of which are incorporated herein by reference.
BACKGROUND [0002] The present disclosure relates to a dynamic stabilization device for bones or vertebrae comprising at least two bone anchoring elements which are connected by an elastic loop. The elastic loop allows a limited motion between the two bone anchoring elements and hence provides a dynamic stabilization of the two bones or vertebrae. [0003] EP 0 669 109 B1 discloses a stabilization device comprising at least two monoaxial bone screws anchored in adjacent vertebrae and connected by a strap to transmit tensile forces between the respective vertebrae. A support body which is resistant to compression surrounds the strap between the bone screws to transmit compressive forces. The strap is fastened to the bone screws in a pre-stressed manner. If more than two bone screws are to be connected, this stabilization device is not easy to handle during surgery and the possibilities of adjusting the device are limited. [0004] Another dynamic stabilization device comprising a bone screw and a flexible rod which is made of an elastomeric material is known from EP 1 364 622 A2. The elastic properties of the system which can be achieved between adjacent vertebrae are determined by the shape and the characteristics of the material of the rod. If a plurality of vertebrae shall be interconnected it is difficult to adapt the elastic properties over the length of the connection according to the actual requirements at the operation site. Furthermore, the receiving part and the shaft of the bone screw are monoaxially connected. This limits the possibility of adjustment of the position of the shaft relative to the rod. [0005] US 2002/0133155 A1 discloses a spinal stabilization system with cross-coupled vertebral stabilizers incorporating spinal motion restriction. The cross-coupled members may assume different forms, including, among others, elastic bands. [0006] U.S. Pat. No. 6,616,669 B2 discloses a device for tethering the spine which is a combination of an artificial strand threaded through channels defined in a set of blocks attached to the vertebral bodies on the convex side of the spine. The device is used to treat deformities by selectively constraining the growth in a portion of the convex side of the spine. [0007] Based on the above, there is a need for a dynamic stabilization device for bones, in particular for vertebrae, which allows an easy adjustment according to the actual clinical requirements and which is simple and safe to be installed during surgery. SUMMARY [0008] The disclosed dynamic stabilization device provides a modular system comprising several endless loops with different length and/or elasticity. Accordingly, it is possible to adapt the system to the actual requirements at the operation site during surgery by simply selecting an elastic loop with appropriate size and stiffness. If a plurality of vertebrae shall be interconnected different elastic loops can be used according to the requirements for stabilization of adjacent motion segments. If the bone anchoring element is a polyaxial screw, this allows a better adjustment of the orientation of the screw head relative to the shank. In combination with the possibility of adjusting the dynamic properties of the device to the actual clinical requirements, it is therefore possible to minimize the forces acting onto the shank of the bone anchoring element. Hence, the disclosed dynamic stabilization device has an improved lifetime and a more balanced performance. [0009] Further features and advantages of the invention will become apparent and will be best understood by reference to the following detailed description of embodiments taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS [0010] FIG. 1 shows a perspective view of a dynamic stabilization device according to a first embodiment. [0011] FIG. 2 shows a sectional view of a bone anchoring element of the dynamic stabilization device according to the first embodiment with the elastic loop inserted. [0012] FIG. 3 shows an exploded perspective view of the bone anchoring element according to FIG. 2. [0013] FIG. 4 shows a dynamic stabilization device according to a second embodiment. [0014] FIG. 5 shows a sectional view of a bone anchoring element according to the second embodiment with the elastic loops inserted. [0015] FIG. 6 shows an exploded view of the bone anchoring element of the dynamic stabilization device of the second embodiment without the elastic loops. [0016] FIG. 7 shows a modification of the elastic loop. [0017] FIG. 8 shows a second embodiment of the elastic loop in a perspective view. [0018] FIG. 9 shows a modification of the second embodiment of the elastic loop in a perspective view. [0019] FIG. 10 shows a sectional view of the elastic loop of FIG. 9 in a plane extending in a perpendicular direction to the longitudinal axis L of the loop along A-A. DETAILED DESCRIPTION [0020] A first embodiment of the dynamic stabilization device which is shown in FIG. 1 includes at least two bone anchoring elements 1, 1′. Each bone anchoring element 1, 1′ has a shank portion 2 with a bone thread for anchoring in the bone and a receiving part 3 connected to the shank portion 2. The receiving part 3, which is also referred to herein as the head portion, has a recess 4 in which an endless elastic loop 5 is inserted so as to connect the two bone anchoring elements 1, 1′. A securing element 6 is provided to secure the endless elastic loop 5 in the receiving part 3 of the bone anchoring element 1, 1′. [0021] As can be seen from FIGS. 1 to 3, the bone anchoring element 1 has at one end of the shank portion 2 and a head 7 which is in this embodiment shaped as a spherical segment. At the side opposite to the shank 2, the spherical head 7 has a recess 8 for engagement with a screwing-in tool. [0022] The receiving part 3 comprises a first end 9 and a second end 10 opposite to the first end and a longitudinal axis 11 intersecting plane of the first end and a second end. Coaxially with the longitudinal axis 11 a bore 12 is provided which extends from the first end 9 to a predetermined distance from the second end 10. At the second end 10 an opening 13 is provided the diameter of which is smaller than the diameter of the bore 12. A spherical section 14 is provided adjacent to the opening 13 which forms a seat for the spherical head 7. The section 14 needs not to be a spherical section, but can have another shape such as, for example, a conically tapering shape. [0023] The recess 4 in the receiving part 3 is U-shaped starting at the first end 9 and extending in the direction of the second end 10 to a predetermined distance from the second end. By means of the U-shaped recess 4 two free legs 15, 16 are formed extending towards the first end 9. Adjacent to the first end 9, the receiving part 3 comprises an internal thread 17 on the legs 15, 16. [0024] The bone anchoring element further includes a first pressure element 18 which has a cylindrical construction with an outer diameter which is only slightly smaller than the inner diameter of the bore 12 to allow the first pressure element 18 to be introduced into the bore 12 of the receiving part 3 and to be moved in the axial direction. On its lower side facing the second end 10, the pressure element 18 includes a spherical recess 19 the radius of which corresponds to the radius of the spherical head 7 of the bone screw. On the opposite side, the first pressure element 18 has a cylindrical recess 20 which extends transversely to the longitudinal axis 11. The lateral diameter of this recess 20 is selected such that the loop 5, which has a circular cross section, can be inserted into the recess 20. The depth of this cylindrical recess 20 is selected such that in an assembled state when the loop 5 is inserted and pressed in the direction of the bottom of the U-shaped recess 4, the first pressure element 18 exerts a pressure onto the head 7. Preferably, the depth of the cylindrical recess 20 is about half of the diameter of the loop 5. The first pressure element 18 further has a coaxial bore 21 for guiding through a screwing-in tool. [0025] The bone anchoring element further comprises a second pressure element 22 with a cylindrical construction with an outer diameter corresponding to the outer diameter of the first pressure element 18 so as to be slidable in the bore 12. The second pressure element 22 has a cylindrical recess 23 on its side facing the first pressure element 18. The diameter of the cylindrical recess 23 is such that the loop 5 can fit therein and its depth is half or less than half of the diameter of the loop 5. Furthermore, the second pressure element 22 also comprises a coaxial bore 24. In an assembled state, as shown in FIG. 2, the first pressure element 18 and the second pressure element 22 encompass the loop 5. As can be seen in particular in FIGS. 2 and 3, the first pressure element 18 and the second pressure element 22 are inserted into the receiving part 3 in such a manner that the orientation of the cylindrical recesses 20 and 23 corresponds to the orientation of the U-shaped recess 4 an upper edge 27 a of the first pressure element 18 abuts a lower edge 29 a of the second pressure element 22. Hence, the loop 5 is clamped between the first pressure element 18 and the second pressure element 22. [0026] The securing element 6 is in the embodiment shown formed as an inner screw which can be screwed-in between the legs 15, 16. On its side facing the receiving part 3, the inner screw 6 has a projection 25 which fits into the coaxial bore 24 of the second pressure element 22. In the assembled state shown in FIG. 2, the projection 25 contacts the loop 5. The internal thread 17 and the cooperating thread of the inner screw 6 can have any known thread shape. Using a flat thread or a negative angle thread, however, prevents splaying of the legs 15, 16. [0027] The receiving part 3 and the pressure element 18 can be loosely pre-assembled by means of crimp bores 32, 33 provided on opposite sides on the receiving part 3 and the first pressure element 18, respectively. [0028] The bone anchoring device can be made of biocompatible material such as stainless steel or titanium or any other material suitable for bone screws. [0029] As can be seen in FIGS. 1 and 7, the loop 5 is endless and has a substantially rectangular contour with two opposing long sides 35, 35′ and two opposing short sides 36, 36′. The length of the short sides 36, 36′ is slightly larger than the diameter of the receiving part 3 so that the short sides 36, 36′ can be inserted into the U-shaped recess 4 of the receiving part 3. The length of the long sides 35, 35′ corresponds to the distance between the receiving parts of the two anchoring elements on the operation site. The loop 5 is preferably made of an elastomeric material, such as a biocompatible plastic material, for example a polymer on the basis of polyurethane, polysilicone or PEEK. A particularly suitable material is Polycarbonate Urethane. It is fully or partially flexible. In particular, the long sides 35, 35′ are flexible. In order to avoid abrasion, the loop 5 can have a reinforcing or protective structure 37 on the short sides 36, 36′ and/or on the long sides 35, 35′. The loop 5 preferably has a circular cross section. [0030] A plurality of loops can be provided with varying dimensions such as a varying length and/or a varying diameter. They also can vary in their elastic properties. [0031] In use, at least two bone anchoring devices 1, 1′ are anchored in two bone fragments or two vertebrae which shall be dynamically stabilized. The bone anchoring devices 1, 1′ consist of the pre-assembled bone screw, receiving part and first pressure element 18. Then, the loop 5 is inserted in the receiving parts 3 of the bone anchoring elements so as to connect the receiving parts 3. Next, the second pressure element 22 is inserted in each of the receiving parts 3 to encompass the loop 5. Thereafter, the inner screw 6 is screwed-in between the legs 15, 16 of the receiving part 3. In this condition, the inner screw 6 prevents falling-out of the second pressure element 23 while the receiving part 3 is still pivotable with respect to shank 2. When tightening the inner screw 6, it presses onto the second pressure element 22 which itself presses onto the first pressure element 18 to exert a pressure onto the head 7 of the bone screw to lock the head 7 of the bone screw in its angular position. The loop 5 usually is inserted in a non-stressed condition. [0032] The required dynamic properties of the device can be easily adjusted by selecting the loop 5 which has the appropriate size and stiffness. If a loop 5 is selected which is highly flexible, it may transmit tensile forces only. If a loop 5 is selected which has a high stiffness, it may also be able to transmit compressive and bending forces. [0033] It is also possible to insert the loop 5 in a pre-stressed manner. [0034] A second embodiment is shown in FIGS. 4 to 6. The second embodiment differs from the first embodiment in that it allows insertion of two or more loops in order to connect more than two anchoring elements. In the example shown in FIG. 4 three anchoring elements 1, 1′, 1′ are connected by two endless elastic loops 50, 51, for example, to stabilize two motion segments of the spinal column. [0035] Parts of the second embodiment which are identical to those of the first embodiment are characterized with the same reference numbers and the description thereof will not be repeated. The receiving part 3 has a recess 40 which is similar to two U-shaped recesses which are combined. The bottom 41 of the recess 40 therefore has two partially cylindrical sections 41 a, 41 b which are adjacent to each other in such a manner that the two loops 50, 51 can be separately accommodated in the sections 41 a, 41 b. The first pressure element 18′ differs from the first pressure element 18 of the first embodiment in that instead of one single cylindrical recess 20 there are two adjacent cylindrical recesses 20 a, 20 b to receive the two separate loops 50, 51. Correspondingly, the second pressure element 22′ has instead of one single cylindrical recess on its side facing the first pressure element to separate cylindrical recesses 23 a, 23 b in order to cover and encompass the two loops 50, 51. [0036] In use, the procedure of anchoring the bone anchoring element and inserting the loops is the same as with the first embodiment. It is however possible with this embodiment to connect more than two bone anchoring devices as shown in FIG. 4. If three bone anchoring devices shall be connected the central bone anchoring device 1′, receives two loops. In this manner, it is possible to connect several motion segments of the spinal column using the appropriate loops required for each motion segment. If more than two adjacent vertebrae shall be stabilized, the receiving parts of the bone screws which are positioned at the respective ends of the chain can be adapted to accommodate only one single loop as those shown in FIG. 1 to 3. This modular system allows to precisely adapt the dynamic stabilization device to the respective motion segment. The system is easy to handle, since the surgeon has only to select the appropriate loop and insert the loop into the receiving part and fix it. It is even possible to use conventional polyaxial bone screws. Only the first pressure element 18, 18′ and second pressure element 22, 22′ are adapted to receive the loops and the loops themselves have to be provided in addition to the conventional equipment. [0037] In a further embodiment it is possible to add an elastomeric damper (not shown) which surrounds at least one of the long sides of a loop to maintain distance between the receiving parts 3 in a case where the loops are flexible to a greater extent. [0038] Modifications of the invention are possible. The loop does not have to have a circular cross section. It can have an oval, rectangular or square cross-section or a cross-section of another shape. The loop also can have a cross-section varying over the length of the sides, in particular over the length of the long sides. In addition, the contour needs not to be rectangular, as shown in the Figures, but can be oval or can have another shape. The loops can be highly flexible or hardly flexible. The surface needs not to be smooth, it can be textured or structured. [0039] FIG. 8 shows a second embodiment of the endless elastic loop. The loop 500 comprises a first closed loop section 501 and a second closed loop section 502 which are connected by a straight section 503. The loop 500 is connected via the first and second loop closed loop sections 501 and 502 with the corresponding receiving parts 3 of the bone screws. The loop 500 is made of an elastomeric material. In a modification, only the straight section 503 is elastic while the closed loop section 501 and 502 are stiff. The loop 500 can also have reinforcing structures to prevent abrasion. [0040] In FIGS. 9 and 10 a further modification of the loop 5, 50, 51 as shown in FIGS. 1 to 4 is shown. The loop 550 comprises two end sections 551 and a central section 553 formed by the two long sides which are drawn together by means of sleeve 554. As a result thereof, the loop 550 resembles the loop 500 shown in FIG. 8 having the two closed loop end sections 501, 502. The sleeve 554 can be made of an elastomeric material. [0041] The loop needs not to be tightly clamped between the first pressure element 18, 18′ and the second pressure element 22, 22′. It is also possible that the loops are only loosely held between the first pressure element 18, 18′ and the second pressure element 22, 22′. In a further modification the cylindrical recess of the first and/or the second pressure element can have projections (not shown), preferably extending transversely to the cylinder axis. The projections can press onto the surface of the loop in such a way that material of the loop flows, thus creating a form-fit connection. For the inner screw 6 all known modifications can be used. This includes also the use of an outer ring or nut. [0042] In the embodiment described the screw is introduced from the top into the receiving part 3. However, a screw can also be introduced from the bottom of the receiving part if the receiving part 3 is constructed to allow this. [0043] In a further modification, the receiving part 3 and the shank 2 can be rigidly connected thus presenting a monoaxial screw. In this case, the first pressure element 18, 18′ can be omitted. In a further modification also the second pressure element 22, 22′ can be omitted. [0044] In a further modification the recess 4, 40 is not open to the top of the receiving part 3 but to the lateral side. [0045] The invention is not limited to screws as bone anchoring elements but can be realized with bone hooks or any other bone anchoring element. [0046] While a particular form of the disclosure has been illustrated and described, it will be apparent that various modifications can be made without departing from the spirit and scope of the disclosure. Accordingly, it is not intended that the disclosure be limited, except as by the appended claims. Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS4771767 *Feb 3, 1986Sep 20, 1988Acromed CorporationApparatus and method for maintaining vertebrae in a desired relationshipUS4887596 *Mar 2, 1988Dec 19, 1989Synthes (U.S.A.)Open backed pedicle screwUS5702395 *Nov 10, 1993Dec 30, 1997Sofamor S.N.C.Spine osteosynthesis instrumentation for an anterior approachUS5735850 *Jan 30, 1996Apr 7, 1998Sulzer Medizinaltechnik AgFastening system for pedicel screwsUS6090111 *Jun 17, 1998Jul 18, 2000Surgical Dynamics, Inc.Device for securing spinal rodsUS6315779 *Mar 15, 2000Nov 13, 2001Sdgi Holdings, Inc.Multi-axial bone anchor systemUS6530926 *Aug 1, 2000Mar 11, 2003Endius IncorporatedMethod of securing vertebraeUS6616669 *Jul 13, 2001Sep 9, 2003Sdgi Holdings, Inc.Method for the correction of spinal deformities through vertebral body tethering without fusionUS6648885 *Nov 11, 1999Nov 18, 2003Sdgi Holdings, Inc.Device for the osteosynthesis of a spinal segmentUS6682533 *Jul 23, 1999Jan 27, 2004Spinal Concepts, Inc.Surgical cable system and methodUS6702817 *Jan 3, 2002Mar 9, 2004Aesculap Ag & Co. KgLocking mechanism for a bone screwUS6706044 *Apr 17, 2002Mar 16, 2004Spineology, Inc.Stacked intermedular rods for spinal fixationUS6966910 *Apr 4, 2003Nov 22, 2005Stephen RitlandDynamic fixation device and method of useUS7507240 *Mar 18, 2005Mar 24, 2009Ron Anthon OlsenAdjustable splint for osteosynthesisUS7608095 *Oct 27, 2009Howmedica Osteonics Corp.Device for securing spinal rodsUS20010037111 *May 1, 2001Nov 1, 2001Dixon Robert A.Method and apparatus for dynamized spinal stabilizationUS20020007184 *Jul 13, 2001Jan 17, 2002James OgilvieMethod for the correction of spinal deformities through vertebral body tethering without fusionUS20020052603 *Dec 7, 2001May 2, 2002Surgical Dynamics, Inc.Apparatus for spinal stabilizationUS20020133155 *May 21, 2002Sep 19, 2002Ferree Bret A.Cross-coupled vertebral stabilizers incorporating spinal motion restrictionUS20020138077 *Mar 25, 2002Sep 26, 2002Ferree Bret A.Spinal alignment apparatus and methodsUS20020143341 *Jan 7, 2002Oct 3, 2002Lutz BiedermannAnchoring elementUS20020177853 *Oct 17, 2001Nov 28, 2002Alan ChervitzApparatus and method for orthopedic fixationUS20030023241 *Aug 20, 2002Jan 30, 2003Drewry Troy D.Adjustable spinal tetherUS20030045875 *Sep 4, 2001Mar 6, 2003Bertranou Patrick P.Spinal assembly plateUS20030125741 *Dec 26, 2002Jul 3, 2003Biedermann Motech GmbhLocking device for securing a rod-shaped element in a holding element connected to a shankUS20030149431 *Feb 1, 2002Aug 7, 2003Varieur Michael S.Closure system for spinal fixation instrumentationUS20030171749 *Jul 25, 2001Sep 11, 2003Regis Le CouedicSemirigid linking piece for stabilizing the spineUS20030191470 *Apr 4, 2003Oct 9, 2003Stephen RitlandDynamic fixation device and method of useUS20030220642 *May 21, 2003Nov 27, 2003Stefan FreudigerElastic stabilization system for vertebral columnsUS20040006342 *Feb 7, 2003Jan 8, 2004Moti AltaracPosterior polyaxial plate system for the spineUS20040039383 *Aug 26, 2002Feb 26, 2004Jackson Roger PNested closure plug and set screw with break-off headsUS20040039386 *Aug 26, 2003Feb 26, 2004Synthes (Usa)Spinal fixation systemUS20040097942 *Jun 6, 2003May 20, 2004Allen C. WayneSystem, methods, and apparatuses for clamping and reclamping an orthopedic surgical cableUS20040111088 *Dec 6, 2002Jun 10, 2004Picetti George D.Multi-rod bone attachment memberUS20040172024 *Mar 4, 2004Sep 2, 2004Gorek Josef E.System and method for stabilizing the spine by securing spine stabilization rods in crossed dispositionUS20040172025 *Mar 4, 2004Sep 2, 2004Drewry Troy D.Flexible spinal stabilization system and methodUS20040254577 *Oct 18, 2002Dec 16, 2004Joel DelecrinProgressive approach osteosynthesis device and preassembly methodUS20040260283 *Jun 19, 2003Dec 23, 2004Shing-Cheng WuMulti-axis spinal fixation deviceUS20040260287 *Jul 19, 2004Dec 23, 2004Nuvasive, Inc.Spinal alignment system and related methodsUS20050010215 *Oct 18, 2002Jan 13, 2005Joel DelecrinPlate for osteosynthesis device and preassembling methodUS20050080420 *Aug 20, 2004Apr 14, 2005Farris Robert A.Multi-axial orthopedic device and systemUS20050131410 *Jun 8, 2004Jun 16, 2005A-Spine Holding Group Corp.Rotary device for retrieving spinal column under treatmentUS20050154388 *Jan 30, 2003Jul 14, 2005Pierre RoussoulySpinal osteosynthesis connector and instrumentationUS20050171537 *Nov 19, 2002Aug 4, 2005Christian MazelConnector for vertebral anchoring systemUS20050171539 *Jan 30, 2004Aug 4, 2005Braun John T.Orthopedic distraction implants and techniquesUS20050203517 *Mar 3, 2005Sep 15, 2005N Spine, Inc.Spinal stabilization deviceUS20050203518 *Mar 4, 2005Sep 15, 2005Biedermann Motech GmbhStabilization device for the dynamic stabilization of vertebrae or bones and rod like element for such a stabilization deviceUS20050228326 *Mar 31, 2004Oct 13, 2005Depuy Spine, Inc.Head-to-head connector spinal fixation systemUS20050234451 *Apr 16, 2004Oct 20, 2005Markworth Aaron DPedicle screw assemblyUS20050240180 *Sep 3, 2002Oct 27, 2005Cecile VienneySpinal osteosynthesis system comprising a support padUS20050261687 *Apr 18, 2005Nov 24, 2005Laszlo GaramszegiPedicle screw assemblyUS20050267470 *May 13, 2004Dec 1, 2005Mcbride Duncan QSpinal stabilization system to flexibly connect vertebraeUS20050277931 *Mar 3, 2005Dec 15, 2005Spinal Generations, LlcSpinal fixation systemUS20060064090 *Jan 28, 2005Mar 23, 2006Kyung-Woo ParkBio-flexible spinal fixation apparatus with shape memory alloyUS20060282080 *May 30, 2006Dec 14, 2006Accin CorporationVertebral facet stabilizerUS20070288008 *Mar 21, 2007Dec 13, 2007Kyung-Woo ParkSemi-rigid spinal fixation apparatusUSRE36221 *May 15, 1996Jun 1, 1999Breard; Francis HenriFlexible inter-vertebral stabilizer as well as process and apparatus for determining or verifying its tension before installation on the spinal column* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS7901437Mar 8, 2011Jackson Roger PDynamic stabilization member with molded connectionUS7951170May 30, 2008May 31, 2011Jackson Roger PDynamic stabilization connecting member with pre-tensioned solid coreUS8012177Jun 19, 2009Sep 6, 2011Jackson Roger PDynamic stabilization assembly with frusto-conical connectionUS8066739Nov 29, 2011Jackson Roger PTool system for dynamic spinal implantsUS8092500Jan 10, 2012Jackson Roger PDynamic stabilization connecting member with floating core, compression spacer and over-moldUS8100915Jan 24, 2012Jackson Roger POrthopedic implant rod reduction tool set and methodUS8105368Aug 1, 2007Jan 31, 2012Jackson Roger PDynamic stabilization connecting member with slitted core and outer sleeveUS8118837Jul 3, 2008Feb 21, 2012Zimmer Spine, Inc.Tapered-lock spinal rod connectors and methods for useUS8152810Nov 23, 2004Apr 10, 2012Jackson Roger PSpinal fixation tool set and methodUS8162948Apr 24, 2012Jackson Roger POrthopedic implant rod reduction tool set and methodUS8167914May 1, 2012Zimmer Spine, Inc.Locking insert for spine stabilization and method of useUS8197512 *Jul 16, 2008Jun 12, 2012Zimmer Spine, Inc.System and method for spine stabilization using resilient insertsUS8252025 *Aug 28, 2012Zimmer Spine, Inc.Vertebral fixation systemUS8273089Sep 25, 2012Jackson Roger PSpinal fixation tool set and methodUS8292892May 13, 2009Oct 23, 2012Jackson Roger POrthopedic implant rod reduction tool set and methodUS8353932Jan 15, 2013Jackson Roger PPolyaxial bone anchor assembly with one-piece closure, pressure insert and plastic elongate memberUS8366745Jul 1, 2009Feb 5, 2013Jackson Roger PDynamic stabilization assembly having pre-compressed spacers with differential displacementsUS8377067Feb 19, 2013Roger P. JacksonOrthopedic implant rod reduction tool set and methodUS8394133Jul 23, 2010Mar 12, 2013Roger P. JacksonDynamic fixation assemblies with inner core and outer coil-like memberUS8444681May 21, 2013Roger P. JacksonPolyaxial bone anchor with pop-on shank, friction fit retainer and winged insertUS8475498Jan 3, 2008Jul 2, 2013Roger P. JacksonDynamic stabilization connecting member with cord connectionUS8506599Aug 5, 2011Aug 13, 2013Roger P. JacksonDynamic stabilization assembly with frusto-conical connectionUS8556938Oct 5, 2010Oct 15, 2013Roger P. JacksonPolyaxial bone anchor with non-pivotable retainer and pop-on shank, some with friction fitUS8591515Aug 26, 2009Nov 26, 2013Roger P. JacksonSpinal fixation tool set and methodUS8591560Aug 2, 2012Nov 26, 2013Roger P. JacksonDynamic stabilization connecting member with elastic core and outer sleeveUS8613760Dec 14, 2011Dec 24, 2013Roger P. JacksonDynamic stabilization connecting member with slitted core and outer sleeveUS8696711Jul 30, 2012Apr 15, 2014Roger P. JacksonPolyaxial bone anchor assembly with one-piece closure, pressure insert and plastic elongate memberUS8795336Sep 30, 2009Aug 5, 2014Biedermann Technologies Gmbh & Co. KgBone anchoring device and stabilization device for bone parts or vertebrae comprising such a bone anchoring deviceUS8814913Sep 3, 2013Aug 26, 2014Roger P JacksonHelical guide and advancement flange with break-off extensionsUS8845649May 13, 2009Sep 30, 2014Roger P. JacksonSpinal fixation tool set and method for rod reduction and fastener insertionUS8852234Jun 1, 2012Oct 7, 2014Zimmer Spine, Inc.System and method for spine stabilization using resilient insertsUS8852239Feb 17, 2014Oct 7, 2014Roger P JacksonSagittal angle screw with integral shank and receiverUS8870928Apr 29, 2013Oct 28, 2014Roger P. JacksonHelical guide and advancement flange with radially loaded lipUS8894657Nov 28, 2011Nov 25, 2014Roger P. JacksonTool system for dynamic spinal implantsUS8911477Oct 21, 2008Dec 16, 2014Roger P. JacksonDynamic stabilization member with end plate support and cable core extensionUS8911478Nov 21, 2013Dec 16, 2014Roger P. JacksonSplay control closure for open bone anchorUS8926670Mar 15, 2013Jan 6, 2015Roger P. JacksonPolyaxial bone screw assemblyUS8926672Nov 21, 2013Jan 6, 2015Roger P. JacksonSplay control closure for open bone anchorUS8936623Mar 15, 2013Jan 20, 2015Roger P. JacksonPolyaxial bone screw assemblyUS8979904Sep 7, 2012Mar 17, 2015Roger P JacksonConnecting member with tensioned cord, low profile rigid sleeve and spacer with torsion controlUS8998959Oct 19, 2011Apr 7, 2015Roger P JacksonPolyaxial bone anchors with pop-on shank, fully constrained friction fit retainer and lock and release insertUS8998960May 17, 2013Apr 7, 2015Roger P. JacksonPolyaxial bone screw with helically wound capture connectionUS9050139Mar 15, 2013Jun 9, 2015Roger P. JacksonOrthopedic implant rod reduction tool set and methodUS9055978Oct 2, 2012Jun 16, 2015Roger P. JacksonOrthopedic implant rod reduction tool set and methodUS9101403 *Aug 31, 2009Aug 11, 2015Biedermann Technologies Gmbh & Co. KgBone anchoring element and stabilization device for bones, in particular for the spinal columnUS9101404Jan 26, 2011Aug 11, 2015Roger P. JacksonDynamic stabilization connecting member with molded connectionUS9144444May 12, 2011Sep 29, 2015Roger P JacksonPolyaxial bone anchor with helical capture connection, insert and dual locking assemblyUS9211150Sep 23, 2010Dec 15, 2015Roger P. JacksonSpinal fixation tool set and methodUS9216039Nov 19, 2010Dec 22, 2015Roger P. JacksonDynamic spinal stabilization assemblies, tool set and methodUS9216041Feb 8, 2012Dec 22, 2015Roger P. JacksonSpinal connecting members with tensioned cords and rigid sleeves for engaging compression insertsUS20100004693 *Jan 7, 2010Peter Thomas MillerCam locking spine stabilization system and methodUS20100057125 *Sep 3, 2008Mar 4, 2010Zimmer Spine Inc.Vertebral fixation systemUS20100087865 *Apr 8, 2010Lutz BiedermannBone anchoring device and stabilization device for bone parts or vertebrae comprising such a bone anchoring deviceUS20100094348 *Aug 31, 2009Apr 15, 2010Lutz BiedermannBone anchoring element and stabilization device for bones, in particular for the spinal column* Cited by examinerClassifications U.S. Classification606/279International ClassificationA61F2/30Cooperative ClassificationA61B17/7037, A61B17/7032, A61B17/7022European ClassificationA61B17/70B1R4, A61B17/70B5BLegal EventsDateCodeEventDescriptionJun 4, 2007ASAssignmentOwner name: BIEDERMANN MOTECH GMBH, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BIEDERMANN, LUTZ;MATTHIS, WILFRIED;RAPP, HELMAR;REEL/FRAME:019377/0182Effective date: 20070523Jan 26, 2012ASAssignmentOwner name: BIEDERMANN MOTECH GMBH & CO. KG, GERMANYFree format text: CHANGE OF LEGAL FORM;ASSIGNOR:BIEDERMANN MOTECH GMBH;REEL/FRAME:027603/0504Effective date: 20090720Mar 16, 2012ASAssignmentOwner name: BIEDERMANN TECHNOLOGIES GMBH & CO. KG, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BIEDERMANN MOTECH GMBH & CO. KG;REEL/FRAME:027873/0551Effective date: 20120308Jan 29, 2013CCCertificate of correctionDec 1, 2015FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services