Abstract:
A bone fusion method, system and device for insertion between bones that are to be fused together and/or in place of one or more of the bones, such as, for example, the vertebrae of a spinal column. The bone fusion device comprises one or more extendable tabs having a central rib. The bone fusion device includes one or more support channels configured to receive an insertion instrument that is then secured to the bone fusion device via a coupling mechanism. As a result, the coupled device is able to be securely positioned between vertebrae using the insertion instrument with minimal risk of slippage.
Abstract:
A system and a method for performing a spinal procedure configured to minimize the size of the surgical corridor so as to reduce recovery time is provided. The system and method include an implant and a guide. The guide is configured to be disposed within a surgical corridor formed by an instrument. The instrument is removed wherein the muscles may contract onto the guide so as to reduce the surgical corridor, wherein the implant is slid down the surgical corridor between a pair of guide members.
Abstract:
An expandable interbody device for placement between adjacent vertebrae having an upper structure, a lower structure and a screw mechanism, wherein actuation of the screw mechanism moves the upper and lower structures between a collapsed configuration and an expanded configuration. A deployment tool couples to the expandable interbody device for positioning the device between adjacent vertebrae, actuating the screw mechanism and delivering a material to a chamber of the expandable interbody device.
Abstract:
A vertebral body replacement device (5000) includes a body member (5100) and a central rod member (5200) having two threaded portions and configured to be operatively associated with the body member (5100). The device also includes a first end member (5300) and a second end member (5400) with the end members configured to threadingly engage the threaded portions of the central rod member (5200). The body member (5100) and the two end members (5300,5400) are further constructed to inhibit rotational movement of the two end members when the device is positioned within a space within a spine as the two end members will engage the adjacent respective vertebral bodies following rotational actuation of the central rod member (5200) causing the end members (5300,5400) to move in an axial direction relative to the body member (5100), thereby allowing the two end members to apply a force to the two vertebral bodies. A surgical instrument and method for using the device are also disclosed.
Abstract:
A modular reverse shoulder prosthesis according to embodiments of the present invention includes a stem having a proximal taper and a primary stem axis, the proximal taper extending from the stem about a metaphyseal axis, the metaphyseal axis at an angle with respect to the primary stem axis, a metaphysis having a proximal end, a distal end, a first aperture in the distal end configured to be placed over the proximal taper, and a second aperture in the proximal end having an insert axis that is eccentrically offset from the metaphyseal axis, the metaphysis configured for attachment to the stem at any rotational position of the metaphysis about the metaphyseal axis, and a reverse insert, the reverse insert having a proximal end and a distal end, wherein the proximal end comprises a concave cup formed about a cup axis and configured to receive a glenosphere, and wherein the distal end comprises a locking protrusion, wherein the locking protrusion has an outer surface with a cross- sectional shape that is rotationally symmetrical about the insert axis with respect to a corresponding inner surface of the second aperture, wherein the rotational symmetry has an order of six, seven, eight, nine, or ten.
Abstract:
Pince de préhension (1) d'implant intervertébral (2) comprenant deux bras rigides (1 1) articulés l'un par rapport à l'autre au niveau d'un organe de connexion (10), les deux bras (1 1) définissant entre eux un espace interne (120), chaque bras (1 1 ) formant une mâchoire (17), les deux mâchoires (17) étant destinées à venir en prise avec un implant intervertébral (2), les mâchoires (17) étant mobiles entre une position ouverte et une position fermée en prise serrante avec l'implant (2), au moins un des deux bras (1 1) comprenant une surface de came (16) pour contraindre les mâchoires (17) en position ouverte, caractérisée en ce que la surface de came (16) s'étend à l'extérieur de l'espace interne (120) défini entre les bras (1 1). La présente invention concerne en outre un kit d'implantation ainsi qu'un ensemble d'implantation comprenant ladite pince de préhension et un implant intervertébrale.
Abstract:
An interbody spacer includes an elongated body with a maximum width between opposite side walls and a maximum height between upper and lower bearing surfaces. The interbody spacer also includes a leading end nose connecting the side walls to facilitate insertion of the interbody spacer into a disc space between vertebrae in an insertion orientation, from which the interbody device is then rotated to position the upper and lower bearing surfaces in contact with the endplates of the adjacent vertebrae. The leading end nose forms a blunt convex nose between the upper and lower bearing surfaces to maximize the bearing surface area available to contact the adjacent endplates.
Abstract:
A spinal interbody fusion implant has an impact rod fitting that is configured and adapted to be connected to an impact rod during implantation of the implant. The implant also comprises one or more openings that are encircled by portions of the implant and that extend into the top of the implant and continue through to and out of the bottom of the implant. The top and bottom of the implant each have a load bearing footprint. Each of the load bearing footprints has a centroid that is closer to the leading end of the implant than to the trailing end of the implant. A method of implanting a spinal interbody fusion implant between two vertebrae of a spine comprises inserting the implant into a patient through a posterior incision and guiding the implant into a position between the two vertebrae using a pair of shims.
Abstract:
An intervertebral implant frame that is configured to be attached to a spacer body can include a pair of arms that extend longitudinally from a support member such that the arms extend substantially around the spacer body. The arms may be configured to expand, crimp, or otherwise engage the spacer body to thereby hold the spacer body to the frame. The spacer body may be made from bone graft.
Abstract:
A prosthesis is provided for replacing a portion of a bone making up a joint. The prosthesis is adapted, intraoperatively, to optimize the anatomical alignment of the prosthesis in the joint. In particular, a jig is used to identify the axis of rotation of the joint intraoperatively and to align a portion of the prosthesis with the identified axis. The angle of the head of the prosthesis is adjusted to optimize contact with the appropriate corresponding portions of the joint, at which point the position of the head is fixed to prevent further rotation of the head relative to the remainder of the prosthesis.