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公开(公告)号：US10888437B2
公开(公告)日：2021-01-12
申请号：US16122805
申请日：2018-09-05
发明人： Malan de Villiers , Ulrich Hahnle , David Hovda
摘要： A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.
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公开(公告)号：US10413420B2
公开(公告)日：2019-09-17
申请号：US16189802
申请日：2018-11-13
发明人： Malan de Villiers , Ulrich Hahnle
摘要： An intervertebral prosthesis for insertion between adjacent vertebrae includes upper and lower prosthesis plates locatable against respective vertebrae and having opposing, concavely curved recesses therein, and a core located between the plates. The core has opposed, convexly curved surfaces received in the recesses of the plates to allow the plates to slide in articulated manner over the core. The opposed surfaces of the core and the recesses of the plates have cooperating spherical curvatures. The recess of each plate surrounds a locating peg projecting centrally from the base of the recess and is bounded by an annular rim, such that the annular rims of the plates are arranged to contact one another at a predetermined limit of sliding movement of the plates over the core. The peg locates loosely in an opening located centrally in a curved surface of the core, whereby the plates can slide over the core in all directions while the peg holds the core captive.
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公开(公告)号：US10166113B2
公开(公告)日：2019-01-01
申请号：US15458913
申请日：2017-03-14
发明人： Malan de Villiers , Ulrich Hahnle
摘要： An intervertebral prosthesis for insertion between adjacent vertebrae includes upper and lower prosthesis plates locatable against respective vertebrae and having opposing, concavely curved recesses therein, and a core located between the plates. The core has opposed, convexly curved surfaces received in the recesses of the plates to allow the plates to slide in articulated manner over the core. The opposed surfaces of the core and the recesses of the plates have cooperating spherical curvatures. The recess of each plate surrounds a locating peg projecting centrally from the base of the recess and is bounded by an annular rim, such that the annular rims of the plates are arranged to contact one another at a predetermined limit of sliding movement of the plates over the core. The peg locates loosely in an opening located centrally in a curved surface of the core, whereby the plates can slide over the core in all directions while the peg holds the core captive.
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公开(公告)号：US10130494B2
公开(公告)日：2018-11-20
申请号：US15387520
申请日：2016-12-21
发明人： Malan de Villiers , Ulrich Hahnle , David Hovda
摘要： A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.
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公开(公告)号：US10085853B2
公开(公告)日：2018-10-02
申请号：US14612550
申请日：2015-02-03
发明人： Malan De Villiers , Ulrich Hahnle , David Hovda
摘要： A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.
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公开(公告)号：US20180193159A1
公开(公告)日：2018-07-12
申请号：US15916139
申请日：2018-03-08
发明人： Malan De Villiers , Ulrich Hahnle
IPC分类号： A61F2/44
CPC分类号： A61F2/442 , A61F2/4425 , A61F2002/3008 , A61F2002/30131 , A61F2002/30245 , A61F2002/30299 , A61F2002/30518 , A61F2002/30649 , A61F2002/30785 , A61F2002/30822 , A61F2002/30838 , A61F2002/30884 , A61F2002/30904 , A61F2002/443 , A61F2002/5098 , A61F2230/0076 , A61F2310/00179
摘要： A prosthetic disc for insertion between adjacent vertebrae includes a core having upper and lower curved surfaces, upper and lower plates, and peripheral restraining structure on at least one of the upper plate, the lower plate and the core. Each plate has an outer surface which engages a vertebra and an inner curved surface which slides over the curved surface of the core. The peripheral restraining structure serves to hold the core against a curved surface of at least one of the plates during sliding movement of the plates over the core.
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公开(公告)号：US09956091B2
公开(公告)日：2018-05-01
申请号：US15465451
申请日：2017-03-21
发明人： Malan de Villiers , Ulrich Hahnle , David Hovda
CPC分类号： A61F2/4611 , A61B17/025 , A61B2017/0256 , A61F2/442 , A61F2/4425 , A61F2/4455 , A61F2/4465 , A61F2002/30518 , A61F2002/30649 , A61F2002/443 , A61F2002/4615 , A61F2002/4622 , A61F2002/4623 , A61F2002/4627 , A61F2002/4628
摘要： A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.
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公开(公告)号：US20170100261A1
公开(公告)日：2017-04-13
申请号：US15387495
申请日：2016-12-21
发明人： Malan de Villiers , Ulrich Hahnle , David Hovda
CPC分类号： A61F2/4611 , A61B17/025 , A61B2017/0256 , A61F2/442 , A61F2/4425 , A61F2/4455 , A61F2/4465 , A61F2002/30518 , A61F2002/30649 , A61F2002/443 , A61F2002/4615 , A61F2002/4622 , A61F2002/4623 , A61F2002/4627 , A61F2002/4628
摘要： A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.
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公开(公告)号：US11857438B2
公开(公告)日：2024-01-02
申请号：US17111357
申请日：2020-12-03
发明人： Malan de Villiers , Ulrich Hahnle , David Hovda
CPC分类号： A61F2/4611 , A61F2/442 , A61F2/4425 , A61F2/4455 , A61F2/4465 , A61B17/025 , A61B2017/0256 , A61F2/4603 , A61F2002/30518 , A61F2002/30649 , A61F2002/443 , A61F2002/4615 , A61F2002/4622 , A61F2002/4627 , A61F2002/4628
摘要： A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.
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公开(公告)号：US10517738B2
公开(公告)日：2019-12-31
申请号：US15812209
申请日：2017-11-14
发明人： Malan de Villiers , Ulrich Hahnle
摘要： An intervertebral prosthesis for insertion between adjacent vertebrae includes upper and lower prosthesis plates locatable against respective vertebrae and having opposing, concavely curved recesses therein, and a core located between the plates. The core has opposed, convexly curved surfaces received in the recesses of the plates to allow the plates to slide in articulated manner over the core. The opposed surfaces of the core and the recesses of the plates have cooperating spherical curvatures. The recess of each plate surrounds a locating peg projecting centrally from the base of the recess and is bounded by an annular rim, such that the annular rims of the plates are arranged to contact one another at a predetermined limit of sliding movement of the plates over the core. The peg locates loosely in an opening located centrally in a curved surface of the core, whereby the plates can slide over the core in all directions while the peg holds the core captive.
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