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WO2018035309A1 - Dispositif de corporéctomie et ses procédés d'utilisation - Google Patents

Dispositif de corporéctomie et ses procédés d'utilisation Download PDF

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Publication number
WO2018035309A1
WO2018035309A1 PCT/US2017/047318 US2017047318W WO2018035309A1 WO 2018035309 A1 WO2018035309 A1 WO 2018035309A1 US 2017047318 W US2017047318 W US 2017047318W WO 2018035309 A1 WO2018035309 A1 WO 2018035309A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
endplate
coupler
units
projection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2017/047318
Other languages
English (en)
Inventor
Daniel GELB
Michael Schular
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Maryland Baltimore
K2M Inc
University of Maryland College Park
Original Assignee
University of Maryland Baltimore
K2M Inc
University of Maryland College Park
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Maryland Baltimore, K2M Inc, University of Maryland College Park filed Critical University of Maryland Baltimore
Publication of WO2018035309A1 publication Critical patent/WO2018035309A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30224—Three-dimensional shapes cylindrical
    • A61F2002/30235—Three-dimensional shapes cylindrical tubular, e.g. sleeves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30471—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30507—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/30538—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30784—Plurality of holes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30904—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves serrated profile, i.e. saw-toothed

Definitions

  • a small opening (i.e., foramen) located in each vertebra allows passage of nerves.
  • the nerves pass through without a problem.
  • the nerves get compressed and may cause back pain, leg pain, or other neurological disorders.
  • One of the challenges during spinal surgery is to build a prosthetic vertebral implant, in real time, that matches the curvature of the spine and the dimensions of the removed vertebral body.
  • the first unit includes a protruding portion disposed above the pair of wings.
  • the protruding portion includes a first aperture defined therethrough and extending along a lateral axis that is parallel to the pivot axis, and a hole defined therethrough and extending along a normal axis that is transverse to the lateral axis.
  • the second unit includes a second aperture defined therethrough and extending along an axis parallel to the lateral axis of the first unit.
  • the coupler further includes a screw and nut assembly including a first nut, a screw, and a second nut.
  • the first nut is positioned in the first aperture of the first unit
  • the second nut is positioned in the second aperture of the second unit
  • the screw is positioned through the hole of the first unit and the first nut, and into the second nut.
  • the second nut may include a threaded inner bore
  • the screw may include a threaded portion threadingly engaged with the threaded inner bore of the second nut.
  • a corpectomy device includes a coupler, a first mesh unit, and a first endplate.
  • the coupler includes a first unit and a second unit pivotable with respect to one another about a pivot axis that is transverse to first and second longitudinal axes defined respectively through the first and second units.
  • the first mesh unit includes a body defining a central opening therethrough, and the first endplate includes an endplate projection on a first end thereof and a plurality of grooves on a second end thereof. First and second end portions of the first mesh unit are configured to connect with the first projection, the second projection, or the endplate projection.
  • the first and second units are pivotable between a first orientation in which the first and second longitudinal axes of the first and second units are substantially aligned with each other and a second orientation in which the first and second longitudinal axes of the first and second units are angled with respect to each other.
  • the corpectomy device further includes a second mesh unit and a second endplate. The endplate projection of the first endplate is coupled to a first end portion of the first mesh unit, a second end portion of the first mesh unit is coupled to the first projection of the coupler, the second projection of the coupler is coupled to a first end portion of the second mesh unit, and a second end portion of the second mesh unit is coupled to an endplate projection of the second endplate.
  • the first unit includes first connecting element openings and the second unit include second connecting element openings.
  • the first and second connecting element openings are defined through at least the first and second projections, respectively, and the first endplate includes endplate connecting element openings defined through at least the endplate projection.
  • the corpectomy device may further include connecting elements that are configured to extend through the first or second connecting element openings of the first unit of the coupler, the central opening of the first mesh unit, and the endplate connecting element openings of the first endplate.
  • the first unit includes first set screw orifices
  • the second unit includes second set screw orifices
  • the first endplate includes endplate set screw orifices.
  • the first, second, and endplate set screw orifices extend along axes substantially perpendicular to axes of the respective first, second, and endplate connecting element openings.
  • the corpectomy device may further include set screws that are positionable within the first, second, and endplate set screw orifices to secure the connecting elements within the first, second, and endplate connecting element openings.
  • the pair of wings of the first unit are coupled to the pair of tabs of the second unit such that the first and second units are pivotable with respect to one another about a pivot axis that is transverse to first and second longitudinal axes defined respectively through the first and second units.
  • the at least one mesh unit includes a body defining a central opening therethrough, and the at least one endplate includes an endplate projection on a first end thereof and a plurality of grooves on a second end thereof.
  • the kit may further include at least one spacing unit including first and second spacing unit projections on opposed ends thereof.
  • FIG. 2B is an exploded view of the corpectomy device of FIG. 2A;
  • FIG. 2C is a partial exploded view of the corpectomy device of FIG. 2A;
  • FIG. 3B is an exploded view of the corpectomy device of FIG 3 A.
  • FIG. 4 is a perspective view of a corpectomy device in accordance with yet another embodiment of the present disclosure.
  • FIGS. 1 A and IB illustrate a coupler 100 in accordance with an embodiment of the present disclosure.
  • the coupler 100 is configured and adapted for use with a corpectomy device (e.g., FIG. 2A) in a corpectomy procedure to replace a vertebral body.
  • the coupler 100 includes a first unit 1 10 pivotably coupled with a second unit 120 about a center of the coupler 100 via a screw and nut assembly 130 and a plurality of dowels 140.
  • the coupler 100 is transitionable between a first orientation (see e.g., FIG. 1C) and a second orientation (see e.g., FIG. IF), and may be used in the first orientation or the second orientation, as well as any orientation therebetween to provide a desired amount of curvature to the coupler 100, as described in further detail below.
  • the first set screw orifices 115 are located two to a side, on opposed sides of the first unit 110.
  • the first set screw orifices 115 extend along axes that are substantially perpendicular to the axes of the first connecting element openings 113 and in communication therewith.
  • the first inner portion 110b includes a protruding portion 116 having a receiving section 118 extending laterally above the cavity 111 and the wings 114.
  • the receiving section 118 includes a first aperture 119a extending therethrough along a second lateral axis "Y2" that is parallel to the first lateral axis "Yl .”
  • the first aperture 119a is configured and dimensioned to receive a first nut 132 of the screw and nut assembly 130.
  • the second unit 120 includes one or more second connecting element openings 123 defined in at least the second projection 122 that extend along axes substantially parallel to the second longitudinal axis "X2" of the second unit 120 of the coupler 100, and one or more second set screw orifices 125 extending along axes substantially perpendicular to the axes of the second connecting element openings 123 and in communication therewith, as described above with regard to the first connecting element openings 113 and the first set screw orifices 115 of the first unit 110.
  • the second connecting element openings 123 are configured and dimensioned to receive connecting elements 150 (see e.g., FIG.
  • the coupler 100 can pivot about the dowels 140 by manipulating the screw 134 of the screw and nut assembly 130 thereby allowing a discrete angular relationship to be established between the first and second units 110, 120 and permitting fine tuning of that relationship, as needed or desired.
  • the coupler 100 is disposed in a first orientation.
  • the first and second longitudinal axes "XI", "X2" of the first and second units 110, 120 of the coupler 100 are substantially aligned (e.g., coaxial).
  • the screw 134 is fully inserted into the first and second nuts 132, 136, with the head portion 134a of the screw 134 visible above the receiving section 118 of the protruding portion 116 of the coupler 100.
  • the screw 134 is shown inserted into a top side of the coupler 100, it should be understood that the screw 134 can be inserted into any side of the coupler 100, e.g., a side perpendicular to the first and second projections 112, 122. In such embodiments, the openings (e.g., the first aperture 119a and the hole 119b of the first unit 110, and the second aperture 129 of the second unit 120) and the first and second nuts 132, 136 of the screw and nut assembly 130 would be shifted internally to accommodate the side insertion of the screw 134. In some embodiments, the screw 134 is inserted through a rounded side, e.g., at an angle to the coupler 100.
  • the coupler 100 and the components thereof are made from biocompatible materials.
  • the coupler 100 is formed from biocompatible metals, such as titanium.
  • the coupler 100 is formed from biocompatible polymers, such as poly ether etherketone (PEEK).
  • PEEK poly ether etherketone
  • the coupler 100 and/or components thereof are formed from combinations of biocompatible materials, such as combinations of metals and polymers.
  • the coupler and/or components thereof may be coated with a biocompatible material, for example, to reduce inflammation and/or promote osteogenesis.
  • a coupler of the present disclosure may be utilized in a corpectomy device including at least one of said couplers, and optionally, at least one mesh unit, at least one endplate, and/or at least one spacing unit as will be discussed in more detail hereinafter.
  • a corpectomy device 10 includes a coupler 100, a plurality of mesh units 200 (designated as first and second mesh units 200a, 200b), and a plurality of endplates 300 (designated as first and second endplates 300a, 300b).
  • the corpectomy device 10 of the illustrated embodiment includes a first endplate 300a coupled to a first mesh unit 200a which, in turn, is coupled to the coupler 100 which, in turn, is coupled to a second mesh unit 200b which, in turn, is coupled to a second endplate 300b.
  • the first and second mesh units 200a, 200b are shown having a generally rectangular shape with rounded corners. It should be understood, however, that the first and second mesh units 200a, 200b may be any shape, such as square, square with rounded corners, round, oval, oblong, etc., so long as the first and second mesh units 200a, 200b are dimensioned to flushly mount with the coupler 100, and/or another component of the corpectomy device 10 (e.g., an endplate 300). In embodiments, the outer dimension of the first and second mesh units 200a, 200b are coterminous with the outer dimension of the coupler 100.
  • First and second end portions 204, 206 of each of the first and second mesh units 200a, 200b are configured and dimensioned to receive and form a connection or joint with the respective first and second projections 112, 122 of the first and second units 110, 120 of the coupler 100, and to align the central openings 202a of the first and second mesh units 200a, 200b with the cavities 111, 121 (FIG. IE) of the coupler 100.
  • Each of the first and second endplates 300a, 300b includes a first end 302 having an endplate projection 304 and a second end 306 having a plurality of grooves 305 defined thereon.
  • the endplate projection 304 is configured and dimensioned to be joined with the first or second end portion 204, 206 of a respective first or second mesh unit 200a, 200b in a similar manner as described above with respect to the first and second projections 112, 122 of the first and second units 110, 120.
  • the plurality of grooves 305 are configured and dimensioned to friction fit or grip a vertebral body and are disposed at a terminal end of the corpectomy device 10.
  • the plurality of grooves 305 can be oriented in any direction, such as vertically, horizontally, and/or diagonally on the second end 304 of the first and second endplates 300a, 300b, and may be disposed in any form and/or pattern, such as continuous grooves, non- continuous grooves, an array of dots, etc. It should be understood that the second end 304 may have any textured pattern and/or shape so long as the first and second endplates 300a, 300b grip or friction fit with a vertebral body.
  • a biocompatible material is disposed over the plurality of grooves 305.
  • the biocompatible material may be coated, sprayed, dipped, etc. onto the second end 304 of the first and/or second endplates 300a, 300b.
  • the biocompatible coating may, for example, reduce inflammation and/or promote osteogenesis.
  • the first and second endplates 300a, 300b are tapered so that its use in the corpectomy device 10 provides a desired degree of curvature to the corpectomy device 10.
  • the endplates 300a, 300b taper from a top portion towards a bottom portion such that the first and second ends 302, 304 of the first and second endplates 300a, 300b are located in planes that intersect each other.
  • the degree of taper can vary depending upon the degree of curvature (e.g., lordosis) of the corpectomy device 10 desired.
  • One of ordinary skill in the art would readily select and use an endplate with the appropriate degree of taper.
  • the corpectomy device 10 is assembled by placing the components (i.e., the coupler 100, the first and second mesh units 200a, 200b, and the first and second endplates 300a, 300b) in a desired order/configuration forming connections between adjacent components, as described above (e.g., mortise and tenon type joints).
  • the first mesh unit 200a and the first endplate 300a are connected to the coupler 100 by positioning connecting elements 150 into the first connecting element openings 113 of the first unit 110 of the coupler 100, through the first mesh unit 200a, and into the endplate connecting element openings 307 of the first endplate 300a.
  • Connecting elements 150 are also positioned in the second connecting element openings 123 of the second unit 120 of the coupler 100, through the second mesh unit 200b, and into the endplate connecting element openings 307 of the second endplate 300b.
  • Set screws 160 are inserted into the second set screw orifices 125 of the second unit 120 of the coupler 100 and the endplate set screw orifices 309 of the second endplate 300b to lock the connecting elements 150 in place.
  • the connecting elements 150 do not connect the first and second units 110, 120 of the coupler 100. Rather, the connecting elements 150 terminate in the respective first or second unit 110, 120 of the coupler 100 in which they are placed so that the coupler 100 may be adjusted to provide the corpectomy device 10 with a desired degree of curvature.
  • the corpectomy device 20 of the illustrated embodiment includes a first endplate 300a coupled to a first mesh unit 200a which, in turn, is coupled to a first spacer 400a which, in turn, is coupled to a second mesh unit 200b which, in turn, is coupled to a second spacer 400b which, in turn, is coupled to a third mesh unit 200c which, in turn, is coupled to a second endplate 300b.
  • a corpectomy device 30 includes a coupler 100, a plurality of mesh units 200 (designated as first, second, and third mesh units 200a, 200b, 200c), a plurality of endplates 300 (designed as first and second endplates 300a, 300b), and a spacing unit 400.
  • the corpectomy device 30 includes a first endplate 300a coupled to a first mesh unit 200a which, in turn, is coupled to a spacing unit 400 which, in turn, is coupled to a second mesh unit 200b which, in turn, is coupled to a coupler 100 which, in turn, is coupled to a third mesh unit 200c which, in turn, is coupled to a second endplate 300b.
  • a corpectomy device may be provided in a kit.
  • the kit is an assembled package including at least one coupler, at least one mesh unit, at least one endplate, at least one spacing unit, a plurality of connecting elements, and a plurality of set screws.
  • the kit includes multiple compartments including, for example, one compartment having a plurality of endplates, another compartment having a plurality of mesh units, yet another compartment having a plurality of spacing units, and another compartment having a plurality of couplers.
  • each compartment may include sub-compartments for each component arranged by shape and/or size.

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Neurology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

Un coupleur comprend une première unité et une seconde unité. La première unité comprend une première partie externe ayant une première saillie et une première partie interne comprenant une paire d'ailes s'étendant à partir de celle-ci dans une relation espacée l'une par rapport à l'autre. La seconde unité comprend une seconde partie externe ayant une seconde saillie et une seconde partie interne comprenant une paire de pattes s'étendant à partir de celle-ci dans une relation espacée l'une par rapport à l'autre. La paire d'ailes de la première unité est couplée à la paire de pattes de la seconde unité de telle sorte que les première et seconde unités peuvent pivoter l'une par rapport à l'autre autour d'un axe de pivot qui est transversal aux premier et second axes longitudinaux définis respectivement à travers les première et seconde unités.
PCT/US2017/047318 2016-08-17 2017-08-17 Dispositif de corporéctomie et ses procédés d'utilisation Ceased WO2018035309A1 (fr)

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US201662375974P 2016-08-17 2016-08-17
US62/375,974 2016-08-17

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100087925A1 (en) * 2008-10-08 2010-04-08 K2M, Inc. Spinal interbody spacer
US20120116460A1 (en) * 2008-02-28 2012-05-10 K2M, Inc. Minimally invasive retraction device having removable blades
US20140343678A1 (en) * 2013-05-20 2014-11-20 K2M, Inc. Adjustable Implant and Insertion Tool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120116460A1 (en) * 2008-02-28 2012-05-10 K2M, Inc. Minimally invasive retraction device having removable blades
US20100087925A1 (en) * 2008-10-08 2010-04-08 K2M, Inc. Spinal interbody spacer
US20140343678A1 (en) * 2013-05-20 2014-11-20 K2M, Inc. Adjustable Implant and Insertion Tool

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