Source: http://www.google.co.uk/patents/US20040210312
Timestamp: 2013-12-13 21:24:58
Document Index: 520382288

Matched Legal Cases: ['art 2', 'art 3', 'art 3', 'art 2', 'arts 2', 'arts 2', 'arts 2', 'art 2', 'art 2', 'arts 2', 'art 2']

Patent US20040210312 - Implant for insertion between vertebrae of the spinal column - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsAn implant for insertion between vertebrae of the spinal column, as a substitute for disks, vertebrae, or parts of vertebrae removed from the spinal column. The implant has a first implant part and a second implant part, which are adjustable, relative to one another, in the direction of their coaxial...http://www.google.co.uk/patents/US20040210312?utm_source=gb-gplus-sharePatent US20040210312 - Implant for insertion between vertebrae of the spinal columnAdvanced Patent SearchPublication numberUS20040210312 A1Publication typeApplicationApplication numberUS 10/801,119Publication date21 Oct 2004Filing date15 Mar 2004Priority date15 Mar 2003Also published asDE10311477A1, EP1459710A2, EP1459710A3Publication number10801119, 801119, US 2004/0210312 A1, US 2004/210312 A1, US 20040210312 A1, US 20040210312A1, US 2004210312 A1, US 2004210312A1, US-A1-20040210312, US-A1-2004210312, US2004/0210312A1, US2004/210312A1, US20040210312 A1, US20040210312A1, US2004210312 A1, US2004210312A1InventorsCarsten NeumannOriginal AssigneeCarsten NeumannExport CitationBiBTeX, EndNote, RefManReferenced by (4), Classifications (36), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetImplant for insertion between vertebrae of the spinal columnUS 20040210312 A1Abstract An implant for insertion between vertebrae of the spinal column, as a substitute for disks, vertebrae, or parts of vertebrae removed from the spinal column. The implant has a first implant part and a second implant part, which are adjustable, relative to one another, in the direction of their coaxial longitudinal axes. The implant also has a joining plate that can be connected with the free end of at least one of the two implant parts, in an essentially perpendicular alignment relative to the longitudinal axis, by means for releasable attachment. This adjustability is to change the length of the implant. Images(5) Claims(27)
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS [0057] Referring to the drawings FIGS. 1 and 2 show an implant 1 that can be inserted between vertebrae of the spinal column, (not shown), to substitute for disks, vertebrae, or parts of vertebrae removed from the spinal column. Implant 1 comprises a first implant part 2 and a second implant part 3, which are axially adjustable, relative to one another, along their longitudinal axis, to change the length of implant 1. FIGS. 1 and 2 show a rotatable threaded ring 4 that is coupled to or assigned to second implant part 3, which engages with a ring thread in a thread assigned to first implant part 2. Threaded ring 4 has a bevel wheel gearing, so that a second bevel wheel, set against the bevel wheel gearing can bring about a change in length of implant 1. [0058] Implant 1 furthermore has at least one joining plate 5. A total of two joining plates 5 that can be connected with the free end of the two implant parts 2, 3 is shown in the exemplary embodiment. The connection can be in an essentially perpendicular alignment relative to the longitudinal axis, by means of a releasable attachment. Joining plate 5 has a means for attachment in duplicate that is on either side, and in each instance is assigned to one of implant parts 2, 3. The thickness of the joining plate 5 corresponds to 2.0% to 30.0% of the height of one of these implant parts 2, 3, so that a change in the length of the implant 1 can essentially be brought about by joining plate 5, particularly by the one shown in isolated manner in FIGS. 23 to 24. The other joining plates 5 shown in the drawing project beyond the outside contour of implant 1 and thereby make available a larger contact surface relative to the adjacent vertebrae for implant 1. [0059] The means for releasable attachment comprises an opening 6 formed in joining plate 5, which is adapted to the outside contour of implant 1, so that joining plate 5 can be set onto implant 1 in the simplest possible manner. With the embodiment shown in FIGS. 1 and 2, opening 6 is disposed configured in the center of gravity of joining plate 5, while FIGS. 3 to 6 show an embodiment in which opening 6 is configured outside of the center of gravity of joining plate 5. [0060] In this regard, FIGS. 2 and 5 show that surface 7 of joining plate 5 that faces the vertebrae may be domed in convex manner. [0061] FIGS. 23 to 25 show that the plug-in connection may also have a catch seat, specifically formed, in concrete terms, via a groove formed at a free end of implant part 2, 3, and also by a spring 9 mounted in a groove 8 of opening 6 of joining plate 5. FIG. 24, in particular, shows that mandrels 10 may be arranged on a side of joining plate 5 that faces the vertebrae, which can also be configured as cutting blades with a longer expanse in the circumferential direction. [0062] Joining plate 5, is configured so that there are many different possibilities of variation to take the actual conditions present in a particular operation into account. FIG. 10, similar to FIG. 13, shows an essentially triangular configuration of joining plate 5, with rounded corners, while FIG. 12 shows a rectangular configuration. In this case, any polygon can be implemented, to the extent that this is desirable for anatomical or operative reasons. [0063]FIG. 11, similar to FIGS. 14 and 15, shows a star-shaped configuration of joining plate 5, wherein the regions between plate ridges 11 can be interpreted as passage openings 12, which allow a great approximation to the outside contour of implant 1 with bone cement, despite the given radial expanse of plate ridges 11. In total, the varied configuration of joining plate 5 also provide better support of the vertebrae, by making large-area contact possible. In this way, the majority of passage openings 12 that are shown embedded in FIG. 7 extend to the edge of joining plate 5 in FIG. 11. The embodiments shown in FIGS. 17 to 22 can be described, in the simplest manner, via plate ridges 11 that proceed from opening 6 of joining plate 5, which form and delimit the passage openings, whereby in FIGS. 21 and 22, the free ends of plate ridges 11 are connected to each other, to form an edge of joining plate 5. [0064]FIGS. 26 and 27 show that the side of joining plate 5 that faces the vertebrae and the side of joining plate 5 that faces implant part 2, 3 are oriented at an incline to the longitudinal axis, so that implant 1 can be better adapted to the anatomical conditions found. For this purpose, joining plates 5 having an incline angle between 3� and 45� may be kept on hand. [0065] To permanently assure the good adaptation of the implant, the rotational position of joining plate 5 can be fixed in place about the longitudinal axis, relative to implant parts 2, or 3, for which purpose catch seats may be formed between joining plate 5 and implant part 2, 3, in the circumference direction, in step widths from 10 degrees to 45 degrees. [0066] Accordingly, while a few embodiments of the present invention have been shown and described, it is to be understood that many changes and modifications may be made thereunto without departing from the spirit and scope of the invention as defined in the appended claims. Referenced byCiting PatentFiling datePublication dateApplicantTitleUS7909870 *12 Jun 200622 Mar 2011Tpl - Kilian KrausHeight-adjustable spinal implant and operating instrument for the implantUS8070817 *27 Jun 20076 Dec 2011M.O.R.E. Medical Solutions GmbhVertebral implantUS814243519 Feb 200927 Mar 2012Aesculap Implant Systems, LlcMulti-functional surgical instrument and method of use for inserting an implant between two bonesWO2013025448A1 *9 Aug 201221 Feb 2013Nuvasive, Inc.Vertebral body replacement* Cited by examinerClassifications U.S. Classification623/17.11, 623/17.16International ClassificationA61F2/02, A61F2/44, A61F2/30, A61F2/00Cooperative ClassificationA61F2002/30405, A61F2002/30523, A61F2002/30604, A61F2/442, A61F2002/30331, A61F2002/30156, A61F2/44, A61F2002/30426, A61F2002/30601, A61F2002/30845, A61F2002/30538, A61F2/30744, A61F2220/0025, A61F2230/0019, A61F2002/30785, A61F2220/0033, A61F2230/005, A61F2230/0058, A61F2002/3055, A61F2250/0006, A61F2002/30171, A61F2002/30179, A61F2002/305, A61F2002/30153, A61F2230/0023, A61F2002/30787, A61F2002/30841, A61F2002/30565European ClassificationA61F2/44D, A61F2/44Legal EventsDateCodeEventDescription24 Jun 2004ASAssignmentOwner name: ULRICH GMBH & CO. KG, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NEUMANN, CARSTEN;REEL/FRAME:015496/0942Effective date: 20040419RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google