Source: http://www.google.com.hk/patents/US8070817?hl=zh-TW
Timestamp: 2013-05-25 04:07:36
Document Index: 560583333

Matched Legal Cases: ['arts 4', 'arts 4', 'art 4', 'arts 4', 'arts 4', 'art 4', 'art 4', 'arts 4', 'art 4', 'arts 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4']

�M�Q US8070817 - Vertebral implant - Google �M�Q�j�M �Ϥ� �a�� Play YouTube �s�D Gmail ���ݵw�� ��h »�i���M�Q�j�M | �������� | �n�J�i���M�Q�j�M�M�QAn implant for insertion between a pair of spaced vertebrae has two interfitted parts relatively shiftable along an axis and having outer ends turned axially away from each other and each formed with an axially outwardly directed part-spherical convex surface. Formations such as a screwthread engaged...http://www.google.com.hk/patents/US8070817?utm_source=gb-gplus-share�M�Q US8070817 - Vertebral implant���}��US8070817 B2�X���������v�ӽЮѽs��11/823,467�o�G���2011�~12��6���ӽФ��2007�~6��27�� �u���v���2006�~6��28����L���}�M�Q��EP1872748A1EP1872748B1US20080015704�o��HGeorg GradlCyrus Khodadadyan-Klostermann��M�Q�v�HM.O.R.E. Medical Solutions Gmbh ���M�Q������623/17.16623/17.15��ڱM�Q������A61F2/44 �X�@����A61F2/44A61F2002/30405A61F2220/0025A61F2002/30495A61F2002/30578A61F2002/30579A61F2002/30663A61F2/4425A61F2002/30841A61F2002/30784A61F2002/30649A61F2002/443A61F2002/30507A61F2002/30601A61F2002/3055 �ڬw������A61F2/44D2A61F2/44�ѦҤ��m�M�Q�ޥ� (27)�~���s�����M�Q�ӼЧ� ���M�Q�ӼЧ��M�Q����T�� �ڬw�M�Q��Vertebral implantUS 8070817 B2�K�n An implant for insertion between a pair of spaced vertebrae has two interfitted parts relatively shiftable along an axis and having outer ends turned axially away from each other and each formed with an axially outwardly directed part-spherical convex surface. Formations such as a screwthread engaged between the parts can axially shift them relative to each other and lock their axial positions relative to each other. Respective L-shaped mounting brackets each have one leg extending transversely across the axis and formed with a part-spherical concave seat complementary to and fitting with a respective one of the part outer ends and another leg extending generally axially outward. The brackets are adapted to be fitted to the vertebrae. Fasteners secure each of the other legs to the respective vertebra.
7. The vertebral implant defined in claim 1 wherein each of the sleeves is formed with an array of radially throughgoing holes. ����
SPECIFIC DESCRIPTION As seen in FIG. 1 an implant 1 is intended for insertion between two vertebrae 2 of the spinal column as a placeholder for a vertebra and/or disks removed from the spinal column. This implant 1 according to the invention may also be used when a vertebra 2 has not been entirely removed from the spinal column, but instead the facet joints 3, for example, may have been retained in the spinal column. This implant 1 comprises two parts 4�� and 4″ which may be displaced relative to one another in the direction of their coaxial longitudinal axis A for changing the length of the implant 1. This is done by forming the two parts 4�� and 4″ as interfitting and coaxial cylindrical sleeves. Changing the length offers the possibility for distraction during the surgical procedure in order to adjust the length of the implant 1 to the patient's requirements.
As also shown in FIGS. 2-4 the implant 1 has a mounting bracket 5″ that is attached to the upper vertebra 2 and that has a part-spherical and downwardly concave seat 6 that fits with a complementarily shaped upper end surface 7 of the upper element 4��. The implant 1 is similarly supported with respect to the lower vertebra 2 shown in the drawing, so that two substantially identical mounting brackets 5�� and 5″ with respective seats 6�� and 6″ are provided overall, one of the mounting brackets 5�� and 5″ being fastened in each of the vertebrae 2, and the lower plate 5″ fitting with a lower end surface 7″ of the lower part 4″. The bearing seats 6�� and 6″ each have a concave part-spherical shape and the bearing surfaces 7�� and 7″ have a complementary convex shape, and the centers of curvature of the bearing surfaces 7�� and 7″ lie on the axis A.
The two parts 4�� and 4″, which have openings 17, form a rotary joint having a center of rotation located between the two bearing surfaces 7�� and 7″. Due to its design the rotation axis itself is not fixed, so that the implant according to the invention permits swiveling in various directions. As indicated in FIGS. 3 and 4, it is important that, to allow the natural motion sequence for curvature of the spinal column, it is not necessary for the upper vertebra 4 and the lower vertebra 4 to rotate in the same direction.
FIGS. 1-4 drawing also show that on its side contacting the vertebra 2 each mounting bracket 5�� and 5″ has a plurality of teeth 9, with points edges 8 arrayed in a circle centered on the axis A. These teeth 9 are used to securely anchor the mounting brackets 5�� and 5″ to the vertebrae 2, and in particular prevent sliding of the mounting brackets 5�� and 5″ with respect to the surface of the vertebrae 2. For securing the mounting brackets 5�� and 5″ with respect to the vertebrae 2 lateral tab 10 extending parallel to the axis A 10 is also provided extending away from the respective bearing seat 6�� and 6″. A cortical screw 12 engaging into the respective vertebra 2 passes through an opening 11 in each such attachment tab 11 The drawing also shows that the two parts 4�� and 4″ are connected to one another via an external thread 18 formed on the upper part 4�� and an internal thread 19 formed on a center part or ring 13 bearing axially on the top end of the lower part 4″. The upper part parts 4�� engages axially inside the lower part 4″ and are displaceable relative to one another axially. The parts 4�� and 4″ are locked against relative rotation about the axis A in a simple manner by means of a pin 15 projecting diametrally across the upper end of the lower part 4″ and fitting in a pair of diametrally opposite, axially extending, and downwardly open slots 14 formed in the upper part 4″. Thus, to adjust the length of the implant 1 the center ring or ring 13 is twisted by means of a wrench or key fitted to openings 16 distributed over its circumference, so that the part 4�� threaded in the center ring 13 is displaced axially relative to the other part 4″. After the desired distraction is achieved, a locking screw is threaded into one of the holes 16, which may be internally threaded, to fix the relative axial position of the one part 4�� with respect to the other part 4″ by fixing the ring 13 on the part 4��.
In order to accommodate the brackets 5�� and 5″ to different sizes it is possible as shown in FIG. 4 for the bracket 5″ to divide the bracket along a line 20 into two parts that can slide relative to each other and that can be arrested relative to each other by a screw 21. A dovetail groove and ridge extending along the line 20 can limit such sliding to one direction. Furthermore a further screw 22 can be provided in the end to relatively shift the parts for accurate adjustment.
�M�Q�ޥ� �ޥΪ��M�Q�ӽФ���o�G��� �ӽЪ��M�Q�W��US52364601991�~10��10��1993�~8��17��Midas Rex Pneumatic Tools, Inc.Vertebral body prosthesisUS53604301993�~7��29��1994�~11��1��Lin; Chih-IIntervertebral locking deviceUS55340291993�~12��1��1996�~7��9��Yumiko ShimaArticulated vertebral body spacerUS55627381995�~1��12��1996�~10��8��Danek Medical, Inc.Intervertebral disk arthroplasty deviceUS57024551996�~7��3��1997�~12��30��Saggar; RahulExpandable prosthesis for spinal fusionUS59162671997�~4��7��1999�~6��29��Frank BaillyAnterior spinal implant system for vertebral body prosthesisUS60154361997�~5��22��2000�~1��18��Heinrich UlrichImplant for filling a space between vertebraeUS61768811997�~4��15��2001�~1��23��SynthesTelescopic vertebral prosthesisUS61904131999�~4��16��2001�~2��20��Ulrich Gmbh & Co. KgVertebral implantUS61937551997�~9��25��2001�~2��27��Howmedica GmbhSpinal cage assemblyUS62003481999�~1��27��2001�~3��13��Biedermann, Motech GmbhSpacer with adjustable axial lengthUS66166951999�~1��29��2003�~9��9��Stryker SpineImplant for replacing a vertebraUS68666821999�~9��2��2005�~3��15��Stryker SpineDistractable corpectomy deviceUS69084852003�~6��13��2005�~6��21��Stryker SpineImplant for replacing a vertebraUS74021762007�~4��12��2008�~7��22��Mmsn Limited PartnershipIntervertebral disc prosthesisUS200300458772002�~5��16��2003�~3��6��Yeh Chung-ChunDevice for fixing spinal column under treatmentUS200400492712002�~8��2��2004�~3��11��Biedermann Technologies Gmbh & Co. KgSpacer having a variable axial lengthUS200401676262004�~1��22��2004�~8��26��Genesis Medical, LlcExpandable artificial disc prosthesisUS200402103122004�~3��15��2004�~10��21��Ulrich Gmbh & Co. KgImplant for insertion between vertebrae of the spinal columnUS200500045722003�~9��11��2005�~1��6��Biedermann LutzSpace keeper for vertebrae or intervertebral disksUS200500600362004�~7��6��2005�~3��17��Bader UweSpinal column implantUS200501139212004�~12��13��2005�~5��26��Stryker SpineDistractable corpectomy deviceUS200502617692004�~12��23��2005�~11��24��Moskowitz MoshehArtificial expansile total lumbar and thoracic discs for posterior placement without supplemental instrumentation and its adaptation for anterior placement of artificial cervical, thoracic and lumbar discsUS200801330132005�~6��30��2008�~6��5��Synergy Disc Replacement, Inc.Artificial Spinal DiscCA2216450A11997�~9��25��1998�~3��26��Howmedica GmbhA spinal cage assemblyDE19856013A1 �W�٤���WO2000033752A11999�~11��26��2000�~6��15��Klein, JuergenDistraction device������l�Ϥ�Google ���� - Sitemap - USPTO �j�q�U�� - ���p�v�F�� - �A�ȱ�� - ���� Google �M�Q - �N���^�X��ƬO�Ѭ��ӷ~�M�Q��Ʈw (IFI CLAIMS Patent Services) ����©2012 Google