EP3651698A1 - Expandierbare implantatanordnung - Google Patents

Expandierbare implantatanordnung

Info

Publication number
EP3651698A1
EP3651698A1 EP18746455.7A EP18746455A EP3651698A1 EP 3651698 A1 EP3651698 A1 EP 3651698A1 EP 18746455 A EP18746455 A EP 18746455A EP 3651698 A1 EP3651698 A1 EP 3651698A1
Authority
EP
European Patent Office
Prior art keywords
control
implant
base member
control shaft
control channel
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.)
Pending
Application number
EP18746455.7A
Other languages
English (en)
French (fr)
Inventor
Daniel Predick
Madeline Wolters
Michael S. Butler
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.)
Life Spine Inc
Original Assignee
Life Spine Inc
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
Priority claimed from US15/645,179 external-priority patent/US10154911B2/en
Application filed by Life Spine Inc filed Critical Life Spine Inc
Publication of EP3651698A1 publication Critical patent/EP3651698A1/de
Pending 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
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A61F2/447—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
    • 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
    • A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
    • 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
    • A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
    • A61F2002/30411—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves having two threaded end parts connected by a threaded central part with opposite threads at its opposite ends, i.e. for adjusting the distance between both end parts by rotating the central part
    • 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
    • A61F2002/30482—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking cam
    • 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
    • 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
    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/30556—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting thickness
    • 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
    • A61F2002/30576—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
    • 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
    • A61F2002/30576—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
    • A61F2002/30578—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs having apertures, e.g. for receiving fixation screws
    • 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

Definitions

  • the present disclosure relates to expandable implants and devices, including spinal interbody and intravertebral body devices, and vertebral interbody and intravertebral devices that are expandable after spinal placement thereof.
  • Fusion cages as well as other types of implants, bodies and/or devices, are frequently utilized in spinal surgery inside a vertebra (intravertebral) and/or between vertebrae of a patient (interbody), or adjacent other bone bodies.
  • interbody devices one or more such spinal bodies are placed between vertebrae to provide support and promote fusion between adjacent vertebrae where such is necessary due to disease, injury, general deterioration or congenital problem.
  • intravertebral devices one or more spinal bodies are placed within a vertebra.
  • Spinal devices such as fusion cages and/or the like, are inserted into a spinal space either anteriorly, posteriorly, laterally or posteriolaterally.
  • a problem with most spinal interbody and intravertebral devices is that they are static in size. This poses various problems with their use and/or implantation. Particularly, static sized spinal devices are fairly large in order to properly bridge the gap between adjacent vertebrae. This large size does not lend itself to microsurgery, arthroscopic surgery or the like.
  • Expandable interbody devices allow the device to be initially smaller than traditional non-expandable (static) interbody devices such that expandable interbody devices may be more easily inserted or implanted into the vertebral space. Moreover, expandable devices allow the surgeon to set the amount of expansion necessary for the particular patient rather than the static device dictating the spacing.
  • an expandable implant including a base member including a top surface, a first end, and a second end, and defining a central cavity positioned between the first end and the second end; an adjustable member including a top surface and at least one control channel, wherein the adjustable member is adjustably- coupled to the base member and movable between a first, collapsed position, and a second, expanded position; a control shaft rotatably received by the base member, wherein rotation of the control shaft cause relative movement of the adjustable member relative to the base member; and at least one control member received on the control shaft and by the control channel, wherein rotation of the control shaft causes the control member to translate along the control shaft and along the control channel.
  • an expandable implant including a base member including a top surface, a first end, and a second end, and defining a central cavity positioned between the first end and the second end; an adjustable member including a top surface, a first control channel, and a second control channel; a control shaft rotatably received by the base member, wherein the control shaft defines a first acute angle with the first control channel and a second acute angle with the second control channel, and wherein rotati on of the control shaft causes relative movement of the adjustable member relative to the base member; a first control member received on the control shaft and by the first control channel such that rotation of the control shaft causes translation of the fi rst control member along the control shaft and along the first control channel; and a second control member received on the control shaft and by the second control channel such that rotation of the control shaft causes translation of the second control member along the control shaft and along the second control channel.
  • an expandable implant including a base member; an adjustable member movably coupled to the base member and defining a first control channel and a second control channel; a control shaft translationally fixed and rotatably movable relative to the base member, wherein rotation of the control shaft causes relative movement of the adjustable member relative to the base member, wherein the control shaft defines a first intersection angle with the first control channel and a second different intersection angle with the second control channel; a first control member received on the control shaft and in the first control channel such that rotati on of the control shaft causes translation of the first control member along the control shaft and within the first control channel, and a second control member received on the control shaft and within the second control channel such that rotation of the control shaft causes translation of the first control member along the control shaft and within the first control channel.
  • FIG. 1 is perspective view of an expandable implant in a collapsed position according to one embodiment.
  • FIG. 2 is a perspective view of the implant of FIG. 1 in an expanded position according to one embodiment.
  • FIG. 3 is an exploded view of the implant of FIG. 1 according to one embodiment.
  • FIG. 4 is a side cross-sectional view of the implant of FIG. 1 in a collapsed position according to one embodiment.
  • FIG. 5 is a side cross-sectional view of the implant of FIG. 1 in an expanded position according to one embodiment.
  • FIG. 6 is a top cross-sectional view of the implant of FIG. 1 according to one embodiment.
  • FIG. 7 is a bottom perspective view of the implant of FIG. 1 in a collapsed position according to one embodiment.
  • FIG. 8 is a bottom perspective view of the implant of FIG. 1 in an expanded position according to one embodiment.
  • FIG. 9A is a schematic view of a control scheme usable with the implants disclosed herein according to one embodiment.
  • FIG. 9B is a schematic view of a control scheme usable with the implants disclosed herein according to another embodiment.
  • FIG. 9C is a schematic view of a control scheme usable with the implants disclosed herein according to another embodiment.
  • FIG. 10 is a perspective view of an expandable implant in a collapsed position according to another embodiment.
  • FIG. 1 1 is a perspective view of the implant of FIG, 10 in an expanded position according to one embodiment.
  • FIG. 12 is an exploded view of the implant of FIG. 10 according to one embodiment.
  • FIG. 13 is a side perspective cross-sectional view of the implant of FIG. 10 in a collapsed position according to one embodiment.
  • FIG. 14 is a side perspective cross-sectional view of the implant of FIG. 10 in an expanded position according to one embodiment.
  • FIG. 15 is a top cross-sectional view of the implant of FIG. 1 according to one embodiment.
  • FIG. 16 is a perspective view of an expandable implant in a collapsed position according to another embodiment.
  • FIG. 17 is a perspective view of the implant of FIG. 16 in an expanded position according to one embodiment.
  • FIG. 18 is a perspective view of bone screws usable with the implant of FIG, 16 according to one embodiment.
  • FIG. 19 is a perspective view of an expandable implant in a collapsed position according to another embodiment.
  • FIG. 20 is a top view of the implant of FIG. 19 according to one embodiment.
  • FIG. 21 is a bottom view of the implant of FIG. 19 according to one embodiment.
  • FIG. 22 is an exploded view of the implant of FIG. 19 according to one embodiment.
  • FIG. 23 is a perspective view of the implant of FIG. 19 in an expanded position according to one embodiment.
  • FIG. 24 is a cross-sectional view of the implant of FIG. 19 in an expanded position according to one embodiment.
  • FIG. 25 is a partial exploded view of the implant of FIG. 19 according to one embodiment.
  • FIG. 26 is a partial exploded view of the implant of FIG. 19 according to another embodiment.
  • FIG. 27 is a perspective view of an implant in a collapsed position according to another embodiment.
  • FIG. 28 is a perspective view of the implant of FIG. 27 in an intermediate position according to one embodiment.
  • FIG. 29 is a perspective view of the implant of FIG. 27 in an expanded position according to one embodiment.
  • FIG. 30 is a side cross-section view of the implant of FIG, 27 in a collapsed position according to one embodiment.
  • FIG. 31 is a side cross-section view of the implant of FIG. 27 in an intermediate position according to one embodiment.
  • FIG. 32 is a side cross-section view of the implant of FIG. 27 in an expanded position according to one embodiment.
  • FIG. 33 is a perspective view of a portion of the implant of FIG. 27 according to one embodiment.
  • FIG. 34 is a cross-section view of the portion of the implant of FIG. 33 according to one embodiment.
  • FIG. 35 is a side perspective view of an implant in a collapsed position according to another embodiment.
  • FIG. 36 is a bottom perspective view of the implant of FIG. 35 according to one embodiment.
  • FIG. 37 is a perspective view of the implant of FIG. 35 in an expanded position according to one embodiment.
  • FIG. 38 is perspective view of the implant of FIG. 35 in an expanded position with bone screws according to one embodiment.
  • FIG. 39 is an exploded view of the implant of FIG. 35 according to one embodiment.
  • FIG. 40 is a cross-section view of the implant of FIG. 35 in a collapsed position according to one embodiment.
  • FIG. 41 is a cross-section view of the implant of FIG. 35 in an expanded position according to one embodiment.
  • FIG. 42 is a top view of the implant of FIG. 35 according to one embodiment.
  • FIG. 43 is a front view of the implant of FIG . 35 according to one embodiment.
  • FIG. 44 is a side view of the implant of FIG. 35 according to one embodiment.
  • FIG. 45 is a perspective view of an implant in a collapsed position according to one embodiment.
  • FIG. 46 is a perspective view of the implant of FIG, 45 in an expanded position according to one embodiment.
  • FIG. 47 is a partial exploded view of the implant of FIG. 45 according to one embodiment.
  • FIG. 48 is a partial exploded view of the implant of FIG. 45 according to one embodiment.
  • FIG. 49 is a side view of the implant of FIG. 45 according to one embodiment.
  • FIG. 50 is a cross-section view of the implant of FIG. 45 according to one embodiment.
  • FIG. 51 is a top perspective view of the implant of FIG. 45 according to one embodiment.
  • FIG. 52 is a bottom perspective view of the implant of FIG. 45 according to one embodiment.
  • FIG. 53 is a partial exploded view of the implant of FIG. 45 according to one embodiment.
  • FIG. 54 is a partial exploded view of the implant of FIG. 45 according to one embodiment.
  • FIG. 55 is a perspective view of an expandable implant in a collapsed position according to another embodiment.
  • FIG. 56 is another perspective view of the implant of FIG. 55 in a collapsed position according to one embodiment.
  • FIG. 57 is a perspective view of the implant of FIG, 55 in an expanded position according to one embodiment.
  • FIG. 58 is a side view of the implant of FIG. 55 in an expanded embodiment.
  • FIG. 59 is a perspective view of the implant of FIG. 55 with bone screws inserted according to one embodiment.
  • FIG. 60 is a perspective view of an expandable implant in a collapsed position according to another embodiment.
  • FIG. 61 is a perspective view of the implant of FIG. 60 in an expanded position according to one embodiment.
  • FIG. 62 is a bottom perspective view of the implant of FIG. 60 in an expanded position according to one embodiment.
  • FIG. 63 is another bottom perspective view of the implant of FIG. 60 in an expanded position according to one embodiment.
  • FIG. 64 is side perspective view of the implant of FIG. 60 in an expanded position with bone screws inserted according to one embodiment.
  • FIG. 65 is a rear perspective view of the implant of FIG. 60 in an expanded position with bone screws inserted according to another embodiment.
  • FIG. 66 is a perspective view of an expandable implant in a collapsed position according to one embodiment.
  • FIG. 67 is a perspective view of the implant of FIG. 66 in an expanded position according to one embodiment.
  • FIG. 68 is a front view of the implant of FIG. 66 in an expanded position according to one embodiment.
  • FIG. 69 is a perspective view of the implant of FIG. 66 in an expanded positi on with bone screws inserted according to one embodiment.
  • FIG. 70 is a side perspective view of an expandable implant in a collapsed position according to one embodiment.
  • FIG. 71 is a cross section view of the implant of FIG. 70 is a collapsed position according to one embodiment.
  • FIG. 72 is a side perspective view of the implant of FIG. 70 in an intermediate position according to one embodiment.
  • FIG. 73 is a cross section view of the implant of FIG. 70 in an intermediate position according to one embodiment.
  • FIG. 74 is side perspective view of the implant of FIG. 70 in an expanded position according to one embodiment.
  • FIG. 75 is a cross section view of the implant of FIG. 70 in an expanded position according to one embodiment.
  • FIG. 76 is another perspective view of the implant of FIG. 70 in an expanded position according to one embodiment.
  • FIG. 77 is a partial cutaway view of the implant of FIG. 70 according to one embodiment.
  • FIG. 78 is a side view of the implant of FIG. 70 according to another embodiment.
  • the present disclosure relates to expandable and/or dynamic implants, including, but not limited to, interbody (between adjacent vertebrae), intravertebral-body (inside the vertebrae) and/or spinal stabilization devices that may or may not be used as interbody fusion cages or devices, interbody/intravertebral bodies/body stabilization devices and/or the like (e.g., spinal device(s)) for providing support, stabilization and/or promoting bone growth between or inside vertebrae or other portions of bone that have been destabilized or otherwise due to injury, illness and/or the like.
  • spinal device(s) for providing support, stabilization and/or promoting bone growth between or inside vertebrae or other portions of bone that have been destabilized or otherwise due to injury, illness and/or the like.
  • the present disclosure provides various versions of dynamic (expandable and/or expandable and retractable)
  • interbody/intravertebral body devices that are usable in a spinal column or other areas of a human.
  • Various embodiments disclosed herein are directed to expandable implants that are implantable between adjacent bodies of bone.
  • the implant may be implanted or inserted into a human spine adjacent upper and lower vertebrae of the spine.
  • the components of the implants disclosed herein maybe made of any suitable material(s), including a variety of metals, plastics, composites, or other suitable bio-compatible materials.
  • one or more components of the implants disclosed herein may be made of the same material, while in other embodiments, different materials may be used for different components of the various implants.
  • Implant 10 is shown according to an exemplar)-' embodiment.
  • Implant 10 is usable, for example, between and/or within vertebral bodies of the spine, and may share many of the features of the other inter/intra-body implants discussed elsewhere herein. It should be understood that implant 10 may in some embodiments be usable in other portions of the body in addition to the spine, and all such applications are to be understood to be within the scope of the present disclosure.
  • implant 10 includes a base member 12 and an adjustable member 14 adjustably coupled to the base member 12.
  • a control shaft 16 is received by the base member 12 and is retained by a retention pin 18 passing through a portion of the base member 12.
  • a first control member 20 and a second control member 22 are received on the control shaft 16 and are movable along the control shaft 16 to adjust a position of the adjustable member 14 between a collapsed position, as shown in FIG. 1, and an expanded position, as shown in FIG. 2.
  • the base member 12 includes a front or first end 24, a rear or second end 26, and a central cavity 36 disposed between the first end 24 and the second end 26.
  • the base member 12 further includes a top surface 28 having ridges or projections 30 formed by corresponding grooves, a bottom surface 32 opposite the top surface 28 and having ridges or projections 34 formed by corresponding grooves, a first side 38, and a second side 40.
  • the projections 30, 34 are configured to engage adjacent portions of bone.
  • the first side 38 defines a first side recess 42
  • the second side 40 defines a second side recess 44.
  • a pin aperture 46 extends through one or both of first side 38 and second side 40 and is configured to receive the retention pin 1 8 (e.g., in a press fit or other manner).
  • the second end 26 of the base member 12 includes a control bore 48 configured to receive a first portion of the control shaft 16,
  • the first end 24 of the base member 12 includes a control counterbore 50 (see FIG. 4) configured to receive a second portion of the control shaft 16.
  • the first end 24 of the base member 12 further includes a dovetail recess 58
  • the second end 26 of the base member 12 further includes a dovetail recess 60.
  • the adjustable member 14 includes a front or first end 62, a rear or second end 64, and a central recess or cavity 78 positioned between the first end 62 and the second end 64.
  • a top cavity 84 (see FIG. 5) in the adjustable member 14 extends to the central cavity 78.
  • the adjustable member 14 further includes a top surface 66 having ridges or projections 68 formed by corresponding grooves, a bottom surface 70 including ridges or projections 72 (see FIG. 8) formed by corresponding grooves, a first side portion 80, and a second side portion 82.
  • the first and second side portions 80, 82 have shapes generally corresponding to the shapes of the first and second side recesses 42, 44 of base member 12.
  • first and second side portions 80, 82 have shapes differing from the shapes of the first and second side recesses 42, 44 of the base member 12.
  • the first end 62 of the adjustable member 14 further includes a dovetail projection 86
  • the second end 64 of the adjustable member 14 further includes a dovetail projection 88.
  • the adjustable member 14 includes one or more control channels, such as a first control channel 74 and a second control channel 76.
  • the first control channel 74 receives the first control member 20, and the second control channel 76 receives the second control member 22.
  • the control members 20, 22 are received in the control channels 74, 76 in a sliding manner such that the control members 20, 22 are able to translate within the control channels 74, 76.
  • each control channel has a shape such that the control channel surrounds the control member and at least partially corresponds in shape to the control member.
  • the control shaft 16 includes a head portion 90, a tool port 92 disposed within the head portion 90, and a retention groove 98 located at an end opposite the head portion 90.
  • the control shaft 6 further includes a first control thread 94 and a second control thread 96.
  • a non-threaded portion 100 may be located between the first control thread 94 and the second control thread 96.
  • the first control member 20 includes a body 02, one or more flat portions 104, and a first internal thread 106.
  • the second control member 22 includes a body 108, one or more flat portions 110, and a second internal thread 1 12.
  • the second control member 22 further includes a slotted portion 114 configured to enable passing the second control member 22 over a portion (e.g., non-threaded portion 100) of the control shaft 6.
  • the first control member 20 and the second control member 22 move or translate both along the control shaft 16 and within or on the first control channel 74 and the second control channel 76.
  • implant 10 is movable between a first, collapsed position, as shown in FIG. 1, to a second, expanded position, shown in FIG. 2.
  • the adjustable member 14 In the first position, the adjustable member 14 is received within the central cavity 36 of the base member 12.
  • the dovetail projections 86, 88 on the adjustable member 14 are received within the dovetail recesses 58, 60 in the base member 12 (see FIG. 6).
  • the projections and recesses have a relatively close fit to enable proper alignment between the adjustable member 14 and the base member 12, while in other embodiments, the projections and recesses have a relatively loose fit to enable a desired angular offset between the adjustable member 14 and the base member 12.
  • the control shaft 16 is received by the base member 12 such that the retention groove 98 is positioned with the first end 24 of the base member 12 and the head portion 90 is positioned within the second end 26 of the base member 12.
  • the control shaft 16 is rotatable within the base member 12, and the retention pin 18 extends through the first end 24 and into the retention groove 98 of the control shaft 16 to enable rotation of the control shaft 16 while inhibiting translation of the control shaft 16 relative to the base member 12.
  • the first control member 20 is received on the first control thread 94 of the control shaft 16, and the second control member 22 is received on the second control thread 96 of the control shaft 6.
  • the slot 114 enables passage of the second control member 22 over the non-threaded portion 100 of the control shaft 16 and subsequent threading of the second control member 22 onto the second control thread 96.
  • the first control thread 94 and the second control thread 96 are threaded in opposite manners (e.g., left-handed and right-handed), such that upon rotation of the control shaft 16, the control members 20, 22 move in opposite directions along the control shaft 16.
  • the control shaft may be configured that rotation of the control shaft 16 in a first direction (e.g., clockwise) causes the first and second control members 20, 22 to move toward each other, and rotation of the control shaft 16 in a second direction (e.g., counter-clockwise) causes the first and second control member 20, 22 to move away from each other.
  • a first direction e.g., clockwise
  • a second direction e.g., counter-clockwise
  • FIGS. 4 and 5 show the control members 20, 22 moving away from each other along the control shaft 16.
  • the adjustable member 14 is moved upward or downward due to the angled shape of the first and second control channels 74, 76.
  • the rate of movement of the control members 20, 22, and therefore the adjustable member 14, can be adjusted by modifying the slope of the control channels 74, 76 relative to the control shaft 16.
  • FIGS. 9A-9C schematic representations of the control shaft 16, the first control channel 74, and the second control channel 76 are shown according to various alternative embodiments.
  • the first control channel 74 extends at a first angle 116 relative to the control shaft 16
  • the second control channel 76 extends at a second angle 118 relative to the control shaft 16.
  • the first and second angles 1 16, 118 define the rate at which first control member 20 and second control member 22 cause corresponding movement (e.g., expansion) of the first and second ends 62, 64 of the adjustable member 14 relative to the base member 12, As shown in FIG.
  • the first angle 116 and second angle 1 18 are approximately the same, and the control channels 74, 76 define linear paths, such that the rates of movement of the first and second ends 62, 64 of the adjustable member 14 are substantially the same and constant (assuming a constant rate of rotation of the control shaft 16).
  • the first and second control channels 74, 76 may extend in a parallel manner or be configured to extend upward at angles in the same general direction.
  • one or both of the control channels 74, 76 may define a non-linear channel. For example, as shown in FIG.
  • the second control channel 76 defines a curved path, thereby providing a changing rate of movement of the second end 64 of adjustable member 14.
  • angles 116, 1 18 may differ from each other to provide different amounts of movement and to suit a particular application.
  • control channels 74, 76 may be configured
  • FIG. 9C An example of such a configuration is reflected in FIG. 9C, and shown in greater detail with the embodiment of FIGS. 27-34.
  • Other configurations of the first and second control channels 74, 76 are possible according to various alternative embodiments.
  • implant 10 is positioned within a desired space (e.g., between adjacent portions of bone) while in the first, collapsed position, as shown in FIG. 1.
  • an appropriate tool may be used to engage tool recesses 56 and manipulate implant 10 into a desired position.
  • a subsequent tool may be utilized to engage tool port 92 and rotate control shaft 16 to move adjustable member 14 to a desired degree of expansion.
  • the adjustable member 14 may be utilized in a fully collapsed position, a fully expanded position, or any intermediate position therebetween.
  • bone graft material may be delivered by way of, for example, access aperture 52 and placed into central cavity 36.
  • the various apertures in and through the base member 12 and adjustable member 14 may in some embodiments facilitate the growth of bone material in and around implant 10 to further stabilize the device.
  • implant 10 may share various features with the other implants described herein, and be made of the same, similar, or different materials.
  • various components of implant 10 may be made of metal, plastic, composites, or other suitable bio-compatible materials.
  • implant 10 may be usable in connection with the spine or other parts of the body.
  • Implant 210 may share many of the features of the other inter/intra-body implants discussed elsewhere herein. Ail such combinations of features are to be understood to be within the scope of the present disclosure.
  • Implant 110 is generally similar to implant 10 in structure and function except that, while implant 10 expands to vary an implant height, implant 210 expands to vary an implant width.
  • Implant 210 includes a base member 212 and an adjustable member 214 adjustably coupled to the base member 212.
  • a control shaft 216 is received by the base member 212 and is retained by a retention pin 218 passing through a portion of the base member 212.
  • first control member 220 and a second control member 222 are received on the control shaft 216 and are movable along the control shaft 216 to adjust a position of the adjustable member 214 between a collapsed position, as shown in FIG. 10, and an expanded position, as shown in FIG. 11.
  • the base member 212 includes a front or first end 224, a rear or second end 226, and a central cavity 236 disposed between the first end 224 and the second end 226.
  • the base member 212 further includes a top surface 228 having ridges or projections 230 formed by corresponding grooves, a bottom surface 232 opposite the top surface 228 and having ridges or projections 234 formed by corresponding grooves, a first side 238, and a second side 240.
  • the projections 230, 234 are configured to engage adjacent portions of bone.
  • the first side 238 defines a plurality of recesses 244.
  • a pin aperture 246 extends through one or both of the fi rst side 238 and the second side 240 and is configured to receive the retention pin 218 (e.g., in a press fit or other manner).
  • the second end 226 of the base member 212 includes a control bore 248 configured to receive a first portion of the control shaft 216.
  • the first end 224 of the base member 212 includes a control counterbore 250 configured to receive a second portion of the control shaft 216.
  • the first end 224 of the base member 212 further includes a dovetail recess 258, and the second end 226 of the base member 212 further includes a dovetail recess 260.
  • the adjustable member 214 includes a front or first end 262, a rear or second end 264, and a central recess or cavity 278 positioned between the first end 262 and the second end 264.
  • a side cavity 284 in the adjustable member 214 extends to the central cavity 278.
  • the adjustable member 214 further includes a top surface 266 having ridges or projections 268 formed by corresponding grooves, a bottom surface 270 including ridges or projections 272 formed by corresponding grooves, a pair of top portions 280, and a pair of bottom portions 282.
  • top and bottom portions 280, 282 are configured to slide underneath or within the top and bottom portions of base member 212 when implant 210 is in the first, collapsed position.
  • the first end 262 of the adjustable member 214 further includes a dovetail projection 286, and the second end 264 of the adjustable member 214 further includes a dovetail projection 288.
  • the adjustable member 214 includes one or more control channels, such as a first control channel 274 and a second control
  • the first control channel 274 receives the first control member 220, and the second control channel 276 receives the second control member 222, In some
  • control members 220, 222 are received in or on the control channels 274, 276 in a sliding manner such that the control members 220, 222 are able to translate within the control channels 274, 276.
  • each control channel has a shape such that the control channel surrounds the control member and at least partially
  • Implant 210 is adjustable in a similar manner to implant 10. However, while adjustment of implant 10 causes a change in height of the implant 10, adjustment of the implant 210 causes a change in width of the implant 210 (while maintaining a constant height). As such, while during adjustment of the implant 10, the top surface 66 of the adjustable member 14 may be offset from the top surface 28 of the base member 12, during adjustment of implant 210, the top surface 266 of the adjustable member 214 stays generally aligned with the top surface 228 of the base member 212. As such, the implant 210 may be used to provide, for example, a more stable implant by increasing the footprint of the implant and engagement areas with adjacent portions of bone. The implantation of the implant 210 is otherwise similar to that of the implant 10.
  • implant 210 may share various features with the other implants described herein, and be made of the same, similar, or different materials.
  • various components of implant 210 may be made of metal, plastic, composites, or other suitable bio-compatible materials.
  • implant 210 may be usable in connection with the spine or other parts of the body.
  • one or bot of a base member or an adjustable member of an implant may be configured to receive a bone screw- to further secure the implant to adjacent portions of bone.
  • an implant 310 includes a base member 312 and an adjustable member 314 adjustably coupled to the base member 312.
  • a control shaft 316 is received by the base member 312 and is retained by a retention pin passing through a portion of the base member 312.
  • a first control member and a second control member are received on the control shaft 316 and are movable along the control shaft 316 to adjust a position of the adjustable member 314 between a collapsed position, as shown in FIG. 16, and an expanded position,
  • Bone screws 320, 322 extend through base member 3 12 and adjustable member 314.
  • Implant 310 may share any combination of the features disclosed herein with respect to the other implants, and ail such combinations of features are to be understood to be within the scope of the present disclosure.
  • the implant 310 is generally rectangular in shape when in a first, collapsed position.
  • the base member 312 includes a first bone screw support portion 324 having a first bone screw bore 326 configured to receive bone screw 320.
  • adjustable member 314 includes a second bone screw support portion 328 having a second bone screw bore 330 configured to receive bone screw 322.
  • the first bone screw support portion 324 and the second bone screw support portion 328 collectively form a proximal face 332 for implant 310.
  • the first bone screw bore 326, the second bone screw bore 330, and the control shaft 316 are accessible by way of the proximal face 332 of the implant 310.
  • the implant 310 may share various features with the other implants described herein, and be made of the same, similar, or different materials.
  • various components of the implant 310 may be made of metal, plastic,
  • implant 310 may be usable in connection with the spine or other parts of the body.
  • an expandable implant 410 is shown according to an exemplary embodiment.
  • the implant 410 is usable, for example, between and/or within vertebral bodies of the spine, and may share any or all of the features of the other inter/intra- body implants discussed elsewhere herein. All such combinations of features are to be understood to be within the scope of the present disclosure. It should be understood that the implant 410 may in some embodiments be usable in other portions of the body in addition to the spine, and all such applications are to be understood to be within the scope of the present disclosure.
  • the implant 410 is substantially similar to the implant 10 in structure and function except as discussed herein with respect to the control members and
  • the implant 410 includes a base member 412 and an adjustable member 414 adjustably coupled to the base member 412.
  • a control shaft 416 is received by the base member 412 and is retained by a retention pin 418 passing through a portion of the base member 412,
  • a first control member 420 and a second control member 422 are received on the control shaft 416 and are movable along the control shaft 416 to adjust a position of the adjustable member 414 between a collapsed position, as shown in FIG. 19, and an expanded position, as shown in FIG. 23.
  • the adjustable member 414 includes one or more control rails, such as a first control rail 474 and a second control rail 476.
  • First control rail 474 receives first control member 420
  • second control rail 476 receives second control member 422.
  • control members 420, 422 are received on control rails 474, 476 in a sliding manner such that the control members 420, 422 are able to translate on the control rails 474, 476.
  • the control rails 474, 476 may define control channels on or in which the control members 420, 422 are received.
  • each control rail has a shape such that the control member surrounds ail or a portion of the control rail and at least partially corresponds in shape to the control rail.
  • the first control member 420 includes control arms 428 configured to engage the first control rail 474.
  • the second control member 422 includes control arms 430 configured to engage the second control rail 476.
  • the first control member 420 and the second control member 422 move or translate both along the control shaft 416 and along the first control rail 474 and the second control rail 476.
  • each control arm is substantially U-shaped and configured to wrap around an end portion of the corresponding control rail. In other embodiments, other shapes and/or configurations of control rails and control arms or other components may be utilized.
  • control members 420, 422 Similar to implant 10, and as shown in FIGS. 23 and 24, as the control members 420, 422 move along the control shaft 416, the control members 420, 422 further move along the control rails 474, 476, thereby causing relative movement of the adjustable member 414 and the base member 412. As the control members 420, 422 translate along the control shaft 416, the adjustable member 414 is moved due to the orientation and shape of the first and second control rails 474, 476. The rate of movement of the control members 420, 422, and therefore adjustable member 414, can be adjusted by modifying the slope of the control rails 474, 476 relative to the control shaft 416, as discussed in greater detail elsewhere herein, including FIGS. 9A-9C.
  • implant 410 may share various features with the other implants described herein, and be made of the same, similar, or different materials.
  • various components of implant 410 may be made of metal, plastic, composites, or other suitable bio-compatible materials.
  • implant 410 may be usable in connection with the spine or other parts of the body.
  • an expandable implant 510 is shown according to an exemplary embodiment.
  • the implant 510 is usable, for example, between and/or within vertebral bodies of the spine, and may share any or all of the features of the other inter/intra- body implants discussed elsewhere herein. All such combinations of features are to be understood to be within the scope of the present disclosure. It should be understood that the implant 510 may in some embodiments be usable in other portions of the body in addition to the spine, and all such applications are to be understood to be within the scope of the present disclosure.
  • the implant 510 is substantially similar to implant 10, with the exception of the configuration of the control channels as discussed below.
  • the implant 510 includes a base member 512 and an adjustable member 514 adjustably coupled to the base member 512.
  • a control shaft 516 is received by the base member 512 and is retained by a retention pin 518 passing through a portion of the base member 512.
  • a first control member 520 and a second control member 522 are received on the control shaft 516 and are movable along the control shaft 516 to adjust a position of the adjustable member 514 between a collapsed position, as shown in FIGS. 27 and 30, and an expanded position, as shown in FIGS. 29 and 32.
  • the adjustable member 5 14 includes a front or first end 530, and a rear or second end 532.
  • the adjustable member 514 further includes one or more control channels, such as a first control channel 524 and a second control channel 526.
  • the first control channel 524 receives the first control member 520
  • the second control channel 526 receives the second control member 522.
  • the control members 520, 522 are received in the control channels 524, 526 in a sliding manner such that the control members 520, 522 are able to translate within the control channels 524, 526.
  • each control channel has a shape such that the control channel surrounds the control member and at least partially corresponds in shape to the control member.
  • the first control channel 524 extends at an angle relative to the control shaft 516, and has a substantially linear form and constant slope, thereby providing a generally constant corresponding rate of movement of the first end 530 of the adjustable member 514.
  • the second control channel 526 includes a first channel portion 528 and a second channel portion 530 which extend at different angles relative to the control shaft 516.
  • the first channel portion 528 is generally parallel to the control shaft 516, and the second channel portion 530 extends at an angle similar to that of first control channel 524.
  • the second control channel 526 provides a non-constant rate of movement of second end 532 of the adjustable member 514.
  • FIGS. 27-32 illustrate the corresponding movement of the adjustable member 514 resulting from the differing configurations of the first control channel 524 and the second control channel 526.
  • the implant 510 is in a collapsed position, such that the control members 520, 522 reside in the upper/inner - most positions within the first and second control channels 524, 526
  • FIGS. 28 and 31 illustrate implant 510 in an intermediate expanded position, where second control member 522 is positioned generally at the intersection of the first channel portion 528 and the second channel portion 530. Due to the orientation of the first channel portion 528, the second end 532 of adjustable member 514 has remained generally at the same height as that shown in FIGS.
  • FIGS. 29-32 show the implant 510 in a fully expanded position, where control members 520, 522 reside in the lower / outer - most positions within the first and second control channels 524, 526. Due to the angled configurations of both the first control channel 524 and the second channel portion 530 of the second control channel 526, both the first end 530 and the second end 532 move relative to the base member 512.
  • Providing an implant with adjustment features such as those provided by implant 510 may facilitate accommodating a desired spinal curvature or other anatomical features where non-parallel supporting surfaces are suitable for a particular application. It should be noted that the control channels and/or control rails herein may take any desired
  • Implant 610 may share many of the features of the other inter/intra-body implants discussed elsewhere herein. All such combinations of features are to be understood to be within the scope of the present disclosure. Implant 610 is generally similar to the other implants disclosed herein in structure and function except that implant 610 utilizes a single control member / control channel configuration, and further utilizes a pivot pin about which an adjustable member pivots relative to a base member.
  • implant 610 includes a base member 612 and an adjustable member 614 adjustably coupled to the base member 612.
  • a control shaft 616 is received by the base member 612 and is retained by a retention pin 618 (e.g., a pivot pin or m ember, retaining pin) passing through a portion of the base member 612 and/or the adjustable member 614.
  • a control member 620 is received on the control shaft 616 and is movable along the control shaft 616 to adjust a position of the adjustable member 614 between a collapsed position, as shown in FIGS. 35 and 36, and an expanded position, as shown in FIGS. 37 and 38.
  • the base member 612 includes a front or first end 624, a rear or second end 626, and a central cavity 638 disposed between the first end 624 and the second end 626.
  • the base member 612 further includes a top surface 646 and a bottom surface 634 opposite the top surface 646 and having ridges or projections 636 formed by corresponding grooves.
  • the projections 636 are configured to engage adjacent portions of bone.
  • the base member 612 further includes a planar portion 628.
  • a first extension 630 is positioned at the first end 624 and extends upward from the planar portion 628, and a second extension 632 is positioned at the second end 626 and extends upward from the planar portion 628.
  • a pin aperture 640 extends through the first extension 630 and is configured to receive the retention pin 618 (e.g., in a press fit, sliding, or other manner).
  • the second extension 632 includes a bone screw bore 650 configured to receive a bone screw 622.
  • the first extension 630 includes a first control bore 642 and the second extension includes a second control bore 644, Control bores 642, 644 receive opposing ends of the control shaft 616.
  • the adjustable member 614 includes a front or first end 652, a rear or second end 654, and cavities 664 extending through the adjustable member 614 and positioned between the first end 652 and the second end 654.
  • the adjustabie member 614 further includes a top surface 656 having ridges or projections 658 formed by corresponding grooves, and a bottom surface 660.
  • the adjustable member 614 further includes pin apertures 668 configured to receive the retention pin 6 8 to enable movement (e.g., pivoting) of the adjustabie member 614 relative to the base member 612.
  • the adjustable member includes a first bone screw support portion 670 including a bone screw bore 674 and a second bone screw support portion 672 having a bone screw bore 676. As shown in FIG.
  • the first and second bone screw support portions 670, 672 of the adjustable member 614 and the second extension 632 of the base member 612 collectively form a front face of the implant 610, such that the control shaft 616 and the bone screws 622 are accessible via the front face of the implant 610 (e.g., when the implant 610 is in a collapsed position).
  • the adjustable member 614 includes one or more control channels, such as control channel 662.
  • the control channel 662 receives the control member 620.
  • the control member 620 is received in the control channel 662 in a sliding manner such that the control member 620 is able to translate within the control channel 662,
  • the control channel 662 has a shape such that the control channel 662 surrounds the control member 620 and at least partially corresponds in shape to the control member 620.
  • the control shaft 616 includes a head portion 678, a tool port 680 disposed within the head portion 678, and a retention groove 684 located at an end opposite the head portion 678.
  • the control shaft 616 further includes a control thread 682.
  • Non-threaded portions 686 may be located on one or both side of the control thread 682.
  • the control member 620 includes a body 688, one or more flat portions 690, and an internal thread 692. In some embodiments, the control member 620 further includes a slotted portion configured to enable passing the control member 620 over a portion (e.g., non-threaded portion 686) of the control shaft 616. The control member 620 moves or translates both along the control shaft 616 and within or on the control channel 662.
  • control shaft 616 is received by the base member 612 such that the retention groove 684 is positioned with the first extension 630 of the base member 612 and the head portion 678 is positioned within the second extension 632 of the base member 612.
  • the control shaft 616 is rotatable within the base member 612, and the retention pin 618 extends through the first extension 630 and into the retention groove 684 of the control shaft 616 to enable rotation of the control shaft 616 while inhibiting translation of the control shaft 616 relative to the base member 612.
  • the internal thread 692 of the control member 620 is recei ved on the control thread 682 of the control shaft 616 such that as the control member 620 moves along the control shaft 616, the control member 620 further moves within the control channel 662, thereby causing relative movement (e.g., pivotal movement) of the adjustable member 614 relative to the base member 612 (e.g., about retention pin 618).
  • FIGS. 40 and 41 show the control member 620 moving along the control shaft 616. As the control member 620 translates along the control shaft 616, the adjustable member 614 pivots about the retention pin 618. The rate of movement of the control member 620, and therefore the adjustable member 614, can be adjusted by modifying the slope of the control channel 662 relative to the control shaft 616.
  • implant 610 is positioned within a desired space (e.g., between adjacent portions of bone) while in the first, collapsed position, as shown in FIG. 35.
  • an appropriate tool may be used to engage tool recesses 648 and manipulate implant 610 into a desired position.
  • a subsequent tool may be utilized to engage tool port 680 and rotate control shaft 616 to pivot adjustable member 614 to a desired degree of expansion.
  • the adjustable member 614 may be utilized in a fully collapsed position, a fully expanded position, or any intermediate position therebetween.
  • One or more bone screws 622 may be screwed into adjacent portions of bone as shown in FIG. 38.
  • bone graft material may be delivered by way of, for example, apertures 664 or alternatively, by the space formed due to the expansion of adjustable member 614.
  • the various apertures in and through the base member 612 and adjustable member 614 may in some embodiments facilitate the growth of bone material in and around implant 610 to further stabilize the device.
  • implant 610 may share various features with the other implants described herein, and be made of the same, similar, or different materials.
  • various components of implant 610 may be made of metal, plastic, composites, or other suitable bio-compatible materials.
  • implant 160 may be usable in connection with the spine or other parts of the body.
  • Implant 710 may include any of the features shown and described with respect to the other expandable implants disclosed herein.
  • implant 710 is in many ways similar to implant 10, and may include any of the features of implant 10,
  • Implant 710 is usable, for example, between and/or within vertebral bodies of the spine, and may share many of the features of the other inter/intra-body implants discussed elsewhere herein. It should be understood that implant 710 may in some embodiments be usable in other portions of the body in addition to the spine, and all such applications are to be understood to be within the scope of the present disclosure.
  • implant 710 includes a base member 712 and an adjustable member 714 adjustably coupled to the base member 712.
  • a control shaft 716 is received by the base member 712 and is retained by a retention member 718 passing through a portion of the base member 712.
  • Retention member 718 is in turn retained in place by a retention pin 719, which may further be welded, press-fit, or otherwise secured in place, as shown in FIG. 54.
  • a first control member 720 and a second control member 722 are received on the control shaft 716 and are movable along the control shaft 716 to adjust a position of the adjustable member 714 between a collapsed position, as shown in FIG. 45, and an expanded position, as shown in FIG. 46.
  • the base member 712 includes a front or first end 724, a rear or second end 726, and a central cavity 736 disposed between the first end 724 and the second end 726.
  • the base member 712 further includes a top surface 728, a bottom surface 732 opposite the top surface 728 and having ridges or projections 734 formed by corresponding grooves, a first side 738, and a second side 740.
  • the projections 734 are configured to engage adjacent portions of bone.
  • the base member 712 further includes alignment guides 742 and alignment recesses 744, which engage corresponding guides and recesses on adjustable member 714.
  • Limiting pin apertures 746 extends through one or both of first side 738 and second side 740 and are configured to receive limiting pins 747 (e.g., in a press fit or other manner). Limiting pins 747 engage corresponding projections 749 on adjustable member 714 to limit an amount of expansion of adjustable member 714 relative to base member 712.
  • the second end 726 of the base member 712 includes a control bore 748 configured to receive a first portion of the control shaft 716.
  • the first end 724 of the base member 712 includes a control counterbore 750 (see FIG. 50) configured to receive a second portion of the control shaft 716.
  • the adjustable member 714 includes a front or first end 762, a rear or second end 764, and a central recess or cavity 778 positioned between the first end 762 and the second end 764.
  • a top cavity 784 (see FIG. 5) in the adjustable member 714 extends to the central cavity 778.
  • the adjustable member 714 further includes a top surface 766 having ridges or projections 768 formed by corresponding grooves, and a bottom surface 770 including ridges or projections 772 (see FIG. 52) formed by corresponding grooves.
  • Alignment guides 780 and alignment recesses 782 are received by alignment recesses 742 and alignment guides 741 of base member 712 to maintain a desired alignment between the base member 712 and the adjustable member 714 (e.g., to provide linear relative movement, permit non-linear relative movement, etc.).
  • projections 749 are disposed within recesses 782 and are configured to engage limiting pins 747 to limit an amount of expansion of adjustable member 714 relative to base member 712.
  • the adjustable member 714 includes one or more control channels, such as a first control channel 774 and a second control channel 776.
  • the first control channel 774 receives the first control member 720
  • the second control channel 776 receives the second control member 722
  • the control members 720, 722 are received in the control channels 774, 776 in a sliding manner such that the control members 720, 722 are able to translate within the control channels 774, 776.
  • each control channel has a shape such that the control channel surrounds the control member and at least partially corresponds in shape to the control member.
  • retention member 718 includes a surface 761 (see
  • FIG. 47 that acts as a limit surface for first control member 720, such that first control member 720 engages surface 761 at a maximum expansion position for adjustable member 714.
  • surface 761 acts to limit the maximum expansion of adjustable member 714 by limiting the degree of movement of first control member 720 (and therefore second control member 722) along control shaft 716.
  • control shaft 716 includes a head portion 790, a tool port 792 disposed within the head portion 790, and a retention groove 798 located at an end opposite the head portion 790,
  • control shaft 716 further includes a first control thread 794 and a second control thread 796.
  • a non-threaded portion 800 may be located between the first control thread 794 and the second control thread 796.
  • the first control member 720 includes a body, one or more flat portions, and a first internal thread.
  • the second control member 722 includes a body, one or more flat portions, and a second internal thread.
  • the second control member 722 further includes a slotted portion configured to enable passing the second control member 722 over a portion (e.g., non-threaded portion 800) of the control shaft 716, The first control member 720 and the second control member 722 move or translate both along the control shaft 716 and within or on the first control channel 774 and the second control channel 776.
  • implant 710 is movable between a first, collapsed position, as shown in FIG. 45, to a second, expanded position, shown in FIG. 46.
  • the adjustable member 714 In the first position, the adjustable member 714 is collapsed against the base member 712.
  • the alignment guides 741 and alignment recesses 742 on base member 712 are received by alignment recesses 780 and alignment guides 782 on adjustable member 714.
  • the alignment guides and recesses have a relatively close fit to enable proper alignment between the adjustable member 714 and the base member 712, while in other embodiments, the alignment guides and recesses have a relatively loose fit to enable a desired angular offset between the adjustable member 714 and the base member 712,
  • the control shaft 716 is received by the base member 712 such that the retention groove 798 is positioned with the first end 724 of the base member 712 and the head portion 790 is positioned within the second end 726 of the base member 712.
  • the control shaft 716 is rotatable within the base member 712, and the retention member 718 extends through the first end 724 and into the retention groove 798 of the control shaft 16 to enable rotation of the control shaft 716 while inhibiting translation of the control shaft 716 relative to the base member 712.
  • the first control member 720 is received on the first control thread 794 of the control shaft 716
  • the second control member 722 is received on the second control thread 796 of the control shaft 716.
  • a slot enables passage of the second control member 722 over the non-threaded portion 800 of the control shaft 716 and subsequent threading of the second control member 722 onto the second control thread 796 (as discussed with respect to, for example, control member 22 shown in FIGS. 1-8).
  • the first control thread 794 and the second control thread 796 are threaded in opposite manners (e.g., left-handed and right-handed), such that upon rotation of the control shaft 716, the control members 720, 722 move in opposite directions along the control shaft 716.
  • the control shaft 716 may be configured such that rotation of the control shaft 716 in a first direction (e.g., clockwise) causes the first and second control members 720, 722 to move toward each other, and rotation of the control shaft 716 in a second direction (e.g., counter-clockwise) causes the first and second control member 720, 722 to move away from each other.
  • the first and second control members 720, 722 are configured to translate in a same direction upon rotation of control shaft 716.
  • control members 720, 722 move along the control shaft 716, the control members 720, 722 further move within the control channels 774, 776, thereby causing relative movement of the adjustable member 714 and the base member 712.
  • the adjustable member 714 is moved upward or downward due to the angled shape of the first and second control channels 774, 776.
  • the rate of movement of the control members 720, 722, and therefore the adjustable member 714 can be adjusted by modifying the slope of the control channels 774, 776 relative to the control shaft 716, as discussed in greater detail with respect to FIGS. 9A-9C.
  • control channels 774, 776 may be configured
  • FIG. 9C An example of such a configuration is reflected in FIG. 9C, and shown in greater detail with the embodiment of FIGS. 27-34.
  • Other configurations of the first and second control channels 774, 776 are possible according to various alternative
  • implant 710 is positioned within a desired space (e.g., between adjacent portions of bone) while in the first, collapsed position, as shown in FIG. 45.
  • an appropriate tool may be used to engage tool recesses 756 and manipulate implant 710 into a desired position.
  • a subsequent tool may be utilized to engage tool port 792 and rotate control shaft 716 to move adjustable member 714 to a desired degree of expansion.
  • the adjustable member 714 may be utilized in a fully collapsed position, a fully expanded position, or any intermediate position therebetween.
  • bone graft material may be delivered by way of, for example, access aperture 752 (see FIG. 49) and placed into central cavity 736.
  • the various apertures in and through the base member 712 and adjustable member 714 may in some embodiments facilitate the growth of bone material in and around implant 710 to further stabilize the device.
  • side apertures 752 may extend through one or bot sides of the base member 712 and the adjustable member 714 and communicate with an interior of implant 710 to promote bone growth, etc.
  • aperture 784 in adjustable member 714 and apertures 751 in the base member 712 provide access to the interior of implant 710 via the top/bottom of implant 710.
  • control member 716 may include an access port 791 accessible by way of tool port 792 that is in fluid communication with the interior of implant 710 and enables delivery of bone graft or other material to the interior of implant 710 (e.g., by way of a tool, etc.).
  • implant 710 may share various features with the other implants described herein, and be made of the same, similar, or different materials.
  • various components of implant 710 may be made of metal, plastic, composites, or other suitable bio-compatible materials.
  • implant 710 may be usable in connection with the spine or other parts of the body,
  • a base member or an adjustable member of an implant may be configured to receive a bone screw to further secure the implant to adjacent portions of bone.
  • an implant 910 includes a base member 912 and an adjustable member 914 is adjustably coupled to the base member 912.
  • a control shaft 916 is received by the base member 912 and may be retained by a retention pin passing through a portion of the base member 912.
  • a first control member 920 and a second control member 922 are received on the control shaft 916 and are movable along the control shaft 916 to adjust a position of the adjustable member 914 between a collapsed position, as shown in FIGS. 55-56, and an expanded position, as shown in FIGS. 57-59.
  • Bone screws 921, 923 extend through base member 912 and adjustable member 914 (see FIG. 59).
  • Implant 910 may include any combination of the features disclosed herein with respect to the other implants, and ail such combinations of features are to be understood to be within the scope of the present disclosure, particularly, but not limited to, those features of implant 310 shown and described with respect to FIGS. 16-18.
  • a substantial portion of implant 910 is generally rectangular in shape when in a first, collapsed position.
  • the base member 912 includes a first bone screw support portion or extension 924 having a first bone screw bore 926 configured to receive bone screw 921.
  • adjustable member 914 includes a second bone screw support portion or extension 928 having a second bone screw bore 930 configured to receive bone screw 923.
  • the first extension 924 and the second extension 928 collectively form a proximal face 932 (see FIG. 58) for implant 910 with the corresponding end portions of base member 912 and adjustable member 914. As shown in FIG. 58, the first bone screw bore 926, the second bone screw bore 930, and the control shaft 916 are accessible by way of the proximal face 932 of the implant 910.
  • extensions 924, 928 extend in generally opposite directions relative to the remaining portions of the base member 912 and the adjustable member 914 (e.g., in a perpendicular fashion, in an angled fashion, etc). As such, extensions 924, 928 may act as to limit the insertion of implant 910 into a vertebral or other space by way of extensions 924, 928 interfacing with adjacent portions of bone. Furthermore, extensions 924, 928 and bone screw bores 926, 930 may be configured such that bone screws 921 , 923 extend in a generally parallel manner to the longitudinal axis of implant 910 (see FIG. 59). This configuration may facilitate fastening screws 921, 923 into adjacent portions of bone due to the alignment of the screws with an incision and/or the implant.
  • implant 910 may include lower alignment guides 940 and lower alignment recesses 942 provided on base member 912 that are configured to be received by corresponding upper alignment recesses 946 and upper alignment guides 944 provided on adjustable member 914 to maintain a desired alignment (e.g., linear, non-linear, etc.) between adjustable member 914 and base member 912.
  • the alignment guides and recesses may be provide on both sides of impl ant 910, and any suitable number of guides and recesses may be utilized.
  • implant 910 includes a central cavity 950 that is accessible (e.g., to promote bone growth, to receive bone growth material, etc.) by way of side apertures 952, which may be provide on one or both sides of base member 912 and/or adjustable member 914. Implant may further include a top aperture 954 to provide access to the central cavity 950.
  • implant 910 may have a relatively flat profile, such that the width of the implant 910 is substantially greater than the height of the main portion or body of implant 910 excluding the extensions 924, 928.
  • the width of the main body of implant 910 may be two, three, four, or more times the height.
  • a flatter profile may provide a more stable implant.
  • the first and second control members 920, 922 may be flush with or adjacent the top and/or bottom surfaces of implant 910, and the corresponding control channels may open up to the top and/or bottom surfaces of implant 910.
  • implant 910 may share various features with the other implants described herein, and be made of the same, similar, or different materials.
  • various components of the implant 910 may be made of metal, plastic, composites, or other suitable bio-compatible materials.
  • the implant 910 may be usable in connection with the spine or other parts of the body.
  • FIGS. 60-65 an expandable implant 1010 is shown according to an exemplary embodiment.
  • Implant 1010 may include many of the features of the other inter/intra-body implants discussed elsewhere herein, particularly implant 610 shown and described with respect to FIGS. 35-44. Ail such combinations of features are to be understood to be within the scope of the present disclosure.
  • Implant 1010 is generally similar to the other implants disclosed herein in structure and function except that implant 1010 utilizes a single control member / control channel configuration, and further utilizes a pivot pin about which an adjustable member pivots relative to a base member.
  • implant 1010 includes a base member 1012 and an adjustable member 1014 adjustably coupled to the base member 1012,
  • a control shaft 1016 is received by the base member 1012 and is retained by a retention pin 1018 (e.g., a pivot pin or member, retaining pin) passing through a portion of the base member 1012 and/or the adjustable member 1014.
  • a control member 1020 is received on the control shaft 1016 and is movable along the control shaft 1016 to adjust a position of the adjustable member 1014 between a collapsed position, as shown in FIG. 60, and an expanded position, as shown in FIG. 61.
  • the base member 1012 includes a front or first end 1024, a rear or second end 1026, and a central cavity 1039 disposed between the first end 1024 and the second end 1026.
  • the base member 1012 further includes a top surface 1046 and a bottom surface 1034 opposite the top surface 1046.
  • the top and bottom surfaces 1046, 1034 may include ridges or projections formed by corresponding grooves, as similarly shown in FIGS, 35-44. The projections are configured to engage adjacent portions of bone.
  • the base member 1012 further includes a bottom portion 1028.
  • a first extension 1030 is positioned at a first side and extends upward from the bottom portion 1028, and a second extension 1032 is positioned at a second side and extends upward from the bottom portion 1028.
  • Extensions 1030, 1032 include curved lateral surfaces 1033 (see FIG. 61) configured to engage corresponding curved surfaces 1035 (see FIG. 63) within recesses 1036 formed in adjustable member 1014 to maintain a desired pivotal alignment during movement of adjustable member 1014,
  • a pin aperture 1068 extends through the bottom portion 1028 and is configured to receive the retention pin 1018 (e.g., in a press fit, sliding, or other manner).
  • a front extension 1038 includes a bone screw bore 1050 configured to receive a bone screw 1022.
  • the front extension 1038 includes a control bore 1042 configured to receive a head portion of the control shaft 1016.
  • the adjustable member 1014 includes a front or first end 1052, a rear or second end 1054, and cavities 1064 extending through the adjustable member 1014 and positioned between the first end 1052 and the second end 1054 (see FIG. 61).
  • the adjustable member 1014 further includes a top surface 1056 that may include ridges or projections formed by corresponding grooves.
  • the adjustable member 1014 further includes pin apertures 1068 (see FIG. 65) configured to receive the retention pin 1018 to enable movement (e.g., pivoting) of the adjustable member 1014 relative to the base member 1012.
  • the adjustable member includes a first bone screw support portion 1070 including a bone screw bore 1074 and a second bone screw support portion 1072 having a bone screw bore 1076, As shown in FIG. 60, the first and second bone screw support portions 1070, 1072 of the adjustable member 1014 and the front extension 1038 of the base member 1012 collectively form a front face of the implant 1010, such that the control shaft 1016 and the bone screws 1022 are accessible via the front face of the implant 1010 (e.g., when the implant 1010 is in a collapsed position). Furthermore, the first and second bone screw support portions 1070, 1072 and the front extension 1038 may be sized and spaced relative to each other so as to prevent undesired relative lateral movement between base member 1012 and adjustable member 1014.
  • the adjustable member 1014 includes one or more control channels, such as control channel 1062.
  • the control channel 062 receives the control member 1020.
  • the control member 1020 is received in the control channel 1062 in a sliding manner such that the control member 1020 is able to translate within the control channel 1062.
  • the control channel 1062 has a shape such that the control channel 1062 surrounds the control member 1020 and at least partially corresponds in shape to the control member 1020.
  • the control shaft 1016 may include the features of control shaft 616 disclosed herein, and may include a head portion, a tool port disposed within the head portion, and a retention groove located at an end opposite the head portion. In some embodiments, the control shaft 1016 further includes a control thread 1082. Non-threaded portions may be located on one or both side of the control thread 1082.
  • the control member 1020 may include the features of control member 620, and may include a body, one or more flat
  • control member 1020 further includes a slotted portion configured to enable passing the control member 1020 over a portion (e.g., a non-threaded portion) of the control shaft 1016.
  • the control member 1020 moves or translates both along the control shaft 1016 and within or on the control channel 1062,
  • control shaft 1016 is received by the base member 1012 such that the head portion of control shaft 1016 is positioned within the front extension 1038 of the base member 1012.
  • control shaft 1016 is rotatable within the base member 1012, and a retention pin (e.g., retention pin 1018) extends into a retention groove of the control shaft 1016 to enable rotation of the control shaft 1016 while inhibiting translation of the control shaft 1016 relative to the base member 1012.
  • the internal thread of the control member 1020 is received on the control thread 1082 of the control shaft 1016 such that as the control member 1020 moves along the control shaft 1016, the control member 1020 further moves within the control channel 1062, thereby causing relative movement (e.g., pivotal movement) of the adjustable member 1014 relative to the base member 1012 (e.g., about retention pin 1018). As the control member 1020 translates along the control shaft 1016, the adjustable member 1014 pivots about the retention pin 1018. The rate of movement of the control member 1020, and therefore the adjustable member 1014, can be adjusted by modifying the slope of the control channel 1062 relative to the control shaft 1016.
  • implant 1010 is positioned within a desired space (e.g., between adjacent portions of bone) while in the first, collapsed position, as shown in FIG. 60.
  • an appropriate tool may be used to engage tool recesses (similar to tool recesses 648) and manipulate implant 1010 into a desired position.
  • a subsequent tool may be utilized to engage control shaft 1016 to pivot adjustable member 1014 to a desired degree of expansion.
  • the adjustable member 1014 may be utilized in a fully collapsed position, a fully expanded position, or any intermediate position therebetween.
  • One or more bone screws 1022 may be screwed into adjacent portions of bone as shown in FIG. 64.
  • bone graft material may be delivered by way of, for example, apertures 1064 or alternatively, by the space formed due to the expansion of adjustable member 1014.
  • the various apertures in and through the base member 1012 and adjustable member 1014 may in some embodiments facilitate the growth of bone material in and around implant 1010 to further stabilize the device.
  • implant 1010 may share various features with the other implants described herein, and be made of the same, similar, or different materials.
  • various components of implant 1010 may be made of metal, plastic, composites, or other suitable bio-compatible materials.
  • implant 1010 may be usable in connection with the spine or other parts of the body,
  • Implant 1 1 10 may include many of the features of the other inter/intra-body implants discussed elsewhere herein, particularly those features of implant 210 shown and described with respect to FIGS. 10-15. All such combinations of features are to be understood to be within the scope of the present disclosure. Implant 1 1 10 is generally similar to implant 210 in structure and function except that implant 11 10 includes extensions to receive bone screws.
  • Implant 1110 includes a base member 1112 and an adjustable member 1114 adjustably coupled to the base member 1 1 12.
  • a control shaft 1116 is received by the base member 1112 and is retained by a retention pin 1118 passing through a portion of the base member 1 1 12.
  • a first control member and a second control member are received on the control shaft 1116 and are movable along the control shaft 1116 to adjust a position of the adjustable member 1 114 between a collapsed position, as shown in FIG. 66, and an expanded position, as shown in FIG. 67.
  • implant 1110 further includes a flange portion or extension 1 120.
  • Extension 1 120 extends from a main body portion 1122 of base member 11 12 and includes an upper extension 1124 and a lower extension 1 126.
  • Upper extension 1 124 includes a first bone screw bore 1 128, and lower extension 1126 includes a second bone screw bore 1130.
  • Extension 1120 further includes an aperture 1133 and a control bore 1 134.
  • Implant 11 10 is adjustable in a similar manner to implant 10. However, while adjustment of implant 10 causes a change in height of the implant 10, adjustment of the implant 11 10 causes a change in width of the implant 1110 (while maintaining a constant height). As such, while during adjustment of the implant 10, the top surface of the adjustable member 14 may be offset from the top surface of the base member 12, during adjustment of implant 11 10, the top surface of the adjustable member 1114 stays generally aligned with the top surface of the base member 11 12.
  • the implant 1 1 10 may be used to provide, for example, a more stable implant by increasing the footprint of the implant and engagement areas with adjacent portions of bone.
  • the implantation of the implant 1110 is otherwise similar to that of the implant 10 and the other implants noted herein.
  • extensions 1 24, 1126 extend in generally opposite directions relative to main portion 1 122 of the base member 1112 (e.g., in a perpendicular fashion, in an angled fashion, etc.). As such, extensions 124, 1126 may act as to limit the insertion of implant 11 10 into a vertebral or other space by way of extensions 1 124, 1 126 interfacing or interfering with adjacent portions of bone. Furthermore, extensions 124, 1126 and bone screw bores 1 128, 1 130 may be configured such that bone screws 1132 extend in a generally parallel manner to the longitudinal axis of implant 1 1 10 (see FIG. 69). This configuration may facilitate fastening bone screws 1132 into adjacent portions of bone due to the alignment of the screws with an incision and/or the implant.
  • implant 1 1 10 may share various features with the other implants described herein, and be made of the same, similar, or different materials.
  • various components of implant 1 1 10 may be made of metal, plastic, composites, or other suitable bio-compatible materials.
  • implant 1110 may be usable in connection with the spine or other parts of the body.
  • an expandable implant 1210 is shown according to an exemplary embodiment.
  • the implant 1210 is usable, for example, between and/or within vertebral bodies of the spine, and may include any or all of the features of the other inter/intra-body implants discussed elsewhere herein. All such combinations of features are to be understood to be within the scope of the present disclosure. It should be understood that the implant 1210 may in some embodiments be usable in other portions of the body in addition to the spine, and all such applications are to be understood to be within the scope of the present disclosure.
  • the implant 1210 is in many ways similar to implant 510, and may include any of the features of implant 510 or the other implants disclosed herein.
  • the implant 1210 includes a base member 1212 and an adjustable member 1214 adjustably coupled to the base member 1212.
  • a control shaft 1216 is received by the base member 1212 and is retained by a retention pin 1218 passing through a portion of the base member 1212.
  • a first control member 1 220 and a second control member 1222 are received on the control shaft 1216 and are movable along the control shaft 1216 to adjust a position of the adjustable member 1214 between a collapsed position, as shown in FIGS, 70-71 , and an expanded position, as shown in FIGS. 74-75.
  • the adjustable member 1214 includes a front or first end 1230, and a rear or second end 1232.
  • the adjustable member 1214 further includes one or more control channels, such as a first control channel 1224 and a second control channel 1226.
  • the first control channel 1224 receives the first control member 1220
  • the second control channel 1226 receives the second control member 1222.
  • the control members 1220, 1222 are received in the control channels 1224, 1226 in a sliding manner such that the control members 1220, 1222 are able to translate within the control channels 1224, 1226.
  • each control channel has a shape such that the control channel surrounds the control member and at least partially corresponds in shape to the control member.
  • control members 1220, 1222 move along the control shaft 1216
  • the control members 1220, 1222 further move within the control channels 1224, 1226, thereby causing relative movement of the adjustable member 1214 and the base member 1212.
  • the adjustable member 1214 is moved based on the shape of the first and second control channels 1224, 1226.
  • the rate of movement of the control members 1220, 1222, and therefore the adjustable member 1214 can be adjusted by modifying the slope of the control channels 1224, 1226 relative to the control shaft 1216.
  • the first control channel 1224 extends at an angle relative to the control shaft 1216, and has a substantially linear form and constant slope, thereby providing a generally constant corresponding rate of movement of the first end 1230 of the adjustable member 1214.
  • the second control channel 1226 includes a first channel portion 1228 and a second channel portion 1231 which extend at different angles relative to the control shaft 1216. As shown in FIG. 34, the first channel portion 1228 is generally parallel to the control shaft 1216, and the second channel portion 1231 extends at an angl e similar to that of first control channel 1224, As such, the second control channel 1226 provides a non-constant rate of movement of second end 1232 of the adjustable member 1214.
  • FIGS. 70-75 illustrate the corresponding movement of the adjustable member 1214 resulting from the differing configurations of the first control channel 1224 and the second control channel 1226.
  • the implant 1210 is in a collapsed position, such that the control members 1220, 1222 reside in the upper positions within the first and second control channels 1224, 1226.
  • FIGS. 72-73 illustrate implant 1210 in an intermediate expanded position, where second control member 1222 is positioned generally at the intersection of the first channel portion 1228 and the second channel portion 1231. Due to the orientation of the first channel portion 1228, the second end 1232 of adjustable member 1214 has moved downward relative to the height as that shown in FIGS.
  • FIGS. 74-75 show the implant 1210 in a fully expanded position, where control members 1220, 1222 reside in the lower / outer - most positions within the first and second control channels 1224, 1226. Due to the angled configurations of both the first control channel 1224 and the second channel portion 1231 of the second control channel 1226, both the first end 1230 and the second end 1232 move relative to the base member 1212.
  • implant 1210 includes features intended to facilitate non-linear movement of adjustment member 1214 relative to base member 1212.
  • a pin 1240 e.g., a projection, etc.
  • the pin 1240 may rotate and/or translate within the slot 1242.
  • Pin 1240 and a slot 1242 limit the range of relative motion between adjustable member 1214 and base member 1212.
  • base member 1212 may include an alignment guide 1244 (e.g., an upstanding wall portion, etc. ) received within an alignment recess 1246 in adjustable member 1214.
  • Alignment guide 1244 and alignment recess 1246 are configured such that in a first, collapsed position, a first side of alignment guide 1244 engages a first side of recess 1246 (see FIG. 70), and in an intermediate position a second side of alignment guide 244 engages a second side of recess 1246 (see FIG. 72). In the fully expanded position, the alignment guide 1244 and recess 246 may disengage due to the separation of the adjustable member 1214 and the base member 1212.
  • implant 1210 includes one or more apertures intended to provide fluid communication (e.g., for the deliveiy of bone growth material, etc.) between an exterior and an interior of implant 1210.
  • implant 1210 includes one or more apertures 1250 extending from an exterior of implant 1210 to an interior.
  • Aperture 1250 may be formed in base member 1212, adjustable member 1214, or as shown in FIG. 78, collectively formed by members 1212, 1214.
  • Providing an implant with adjustment features such as those provided by implant 1210 may facilitate accommodating a desired spinal curvature or other anatomical features where non-parallel supporting surfaces are suitable for a particular application. It should be noted that the control channels and/or control rails herein may take any desired
  • the various embodiments disclosed herein provide expandable implants including a base member, an adjustable member adjustably coupled to the base member and movable between a first, collapsed position, and a second, expanded position, and a control shaft rotatably received by the base member, where rotation of the control shaft cause relative movement of the adjustable member relative to the base member.
  • At least one control member is received on the control shaft and by the control channel, and rotation of the control shaft causes the control member to translate along the control shaft and along the control channel.
  • the adjustable member moves in a linear fashion relative to the base member. In other embodiments, the adjustable member moves in a non-linear fashion relative to the base member. In further embodiments, the adjustable member pivots about a pivot axis relative to the base member. The pivot axis may be provided by a pivot pin extending through one or both of the adjustable member and the base member,
  • a single control member and control channel are utilized.
  • multiple (e.g., 2) control members and control channels are utilized.
  • the multiple control channels are parallel and straight.
  • the control channels are non-parallel and straight (e.g., angled toward each other).
  • the control channels are non-parallel and non-straight such that the adjustable member moves in a non-linear fashion relative to the base member,
  • the control shaft includes a control thread corresponding to each control member.
  • the control shaft includes a single control thread, in other embodiments the control shaft includes multiple (e.g., first and second) control threads.
  • the control threads are like-threaded.
  • the control threads have different threads.
  • a first control thread is opposite-handed from a second control thread.
  • a first control thread has a different pitch from a second control thread.
  • a first control thread is different handed and has a different pitch from a second control thread.
  • one or both of the adjustable member and the base member include projections / grooves to provide a gripping surface intended to facilitate gripping adjacent portions of bone.
  • one or both of the adjustable member and the base member include one or more apertures and/or cavities configured to promote bone growth in and around the adjustable member and the base member.
  • the apertures extend from a top, bottom, and/or side surface of the adjustment member or the base member and to a central cavity of the implant.
  • one or more bone screws may be included and positioned to extend through one or both of the adjustable member and the base member and into adjacent portions of bone.
  • multiple bone screws are used.
  • a first bone screw may extend through the adjustable member and into a first portion of bone
  • a second bone screw may extend through the base member and into a second portion of bone.
  • multiple bone screws are accessible and manipulatable by way of a front face of the implant defined by one or both of the adjustable member and the base member.
  • a head and tool port of the control shaft may further be accessible by way of the front face of the implant.
  • any suitable configuration of the control shaft / control member(s) / control channel (s) may be utilized.
  • an at least partially spherical control member threadingly engages a threaded control shaft and translates both along the control shaft and within the control channel.
  • the control member is non-spherical and is received at least partially on or in a control rail or control channel provided by the adjustable member, such that the control member translates along both the control shaft and the control channel or control rail.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (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)
EP18746455.7A 2017-07-10 2018-07-09 Expandierbare implantatanordnung Pending EP3651698A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/645,179 US10154911B2 (en) 2013-03-13 2017-07-10 Expandable implant assembly
PCT/US2018/041306 WO2019014139A1 (en) 2017-07-10 2018-07-09 EXPANDABLE IMPLANT ASSEMBLY

Publications (1)

Publication Number Publication Date
EP3651698A1 true EP3651698A1 (de) 2020-05-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18746455.7A Pending EP3651698A1 (de) 2017-07-10 2018-07-09 Expandierbare implantatanordnung

Country Status (2)

Country Link
EP (1) EP3651698A1 (de)
WO (1) WO2019014139A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10426632B2 (en) 2013-03-13 2019-10-01 Life Spine, Inc. Expandable spinal interbody assembly
US11304818B2 (en) 2013-03-13 2022-04-19 Life Spine, Inc. Expandable spinal interbody assembly
US11896494B2 (en) 2017-07-10 2024-02-13 Life Spine, Inc. Expandable implant assembly
US11033403B2 (en) 2017-07-10 2021-06-15 Life Spine, Inc. Expandable implant assembly
WO2020251943A1 (en) * 2019-06-10 2020-12-17 Life Spine, Inc. Expandable implant assembly with compression features
US11857432B2 (en) 2020-04-13 2024-01-02 Life Spine, Inc. Expandable implant assembly
US11602439B2 (en) 2020-04-16 2023-03-14 Life Spine, Inc. Expandable implant assembly
US11602440B2 (en) 2020-06-25 2023-03-14 Life Spine, Inc. Expandable implant assembly
US11554020B2 (en) 2020-09-08 2023-01-17 Life Spine, Inc. Expandable implant with pivoting control assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8685098B2 (en) * 2010-06-25 2014-04-01 Globus Medical, Inc. Expandable fusion device and method of installation thereof
EP3253335B1 (de) * 2015-02-05 2019-08-14 Spectrum Spine IP Holdings, LLC Expandierbare, anpassbare intersomatische fusionsvorrichtungen

Also Published As

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WO2019014139A8 (en) 2019-10-31
WO2019014139A1 (en) 2019-01-17

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