WO2014163936A4 - Inserter for expanding an expandable interbody fusion device - Google Patents

Inserter for expanding an expandable interbody fusion device Download PDF

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Publication number
WO2014163936A4
WO2014163936A4 PCT/US2014/019028 US2014019028W WO2014163936A4 WO 2014163936 A4 WO2014163936 A4 WO 2014163936A4 US 2014019028 W US2014019028 W US 2014019028W WO 2014163936 A4 WO2014163936 A4 WO 2014163936A4
Authority
WO
WIPO (PCT)
Prior art keywords
lifting platform
inserter
insert
elevator
endplate
Prior art date
Application number
PCT/US2014/019028
Other languages
French (fr)
Other versions
WO2014163936A3 (en
WO2014163936A2 (en
Inventor
Spanky Allen Raymond
Scott Mclean
Nicola Cullinan
Original Assignee
Spine Wave, 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
Application filed by Spine Wave, Inc. filed Critical Spine Wave, Inc.
Priority to EP14779285.7A priority Critical patent/EP2967917B1/en
Publication of WO2014163936A2 publication Critical patent/WO2014163936A2/en
Publication of WO2014163936A3 publication Critical patent/WO2014163936A3/en
Publication of WO2014163936A4 publication Critical patent/WO2014163936A4/en

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
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • 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
    • 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
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
    • 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
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • 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

Abstract

An elongate inserter has a distal end releasably connected to an expandable interbody fusion device and a proximal end including a trigger actuator. The interbody fusion device comprises a superior endplate and an inferior endplate that are movable in an expansion direction relative to each other in the intradiscal space. The inserter includes a lifting platform and an elevator that define cooperatively engaging ramps and ramps surfaces that upon operation of the trigger actuator cause the superior and inferior endplates to move relatively away from each other. A driver is supported by the inserter for pushing an insert into the expanded device between the superior and inferior endplates.

Claims

AMENDED CLAIMS
received by the International Bureau
on 27 April 2015 (27.04.2015)
What is claimed is:
1. An inserter for expanding an expandable spinal interbody fusion device and inserting an insert therewithin, said device including a superior endplate having an outer surface configured to contact a first vertebral body of a spine and an inferior endplate movable relative to said superior endplate in an expansion direction, said inferior endplate having an outer surface configured to contact a second opposing vertebral body of said spine, comprising:
an elongate barrel having a distal end and a proximal end, said distal end being releasably attachable to said device and comprising a trigger actuator at said proximal end,
said barrel including at said distal end a lifting platform for engaging said superior endplate and an elevator for engaging said inferior endplate, said lifting platform being movable translationally relative to said elevator in a direction transverse to the direction of expansion of said device to cause during such translational movement said lifting platform to move away from said elevator in the direction of expansion and thereby lift said lifting platform relative to said inferior endplate and expand said device, one of said lifting platform and said elevator being operably coupled to said trigger actuator to cause said translational movement upon operation of said trigger actuator, and
said barrel movably supporting at least one insert insertable upon operation of said trigger actuator into said device between said superior endplate and said inferior endplate after expansion of said device, said barrel supporting a driver coupled to said trigger actuator for translational movement relative to one of said lifting platform and said elevator, said driver having a distal end defining a pushing surface for engagement with a cooperative pushing surface on said insert.
2. The inserter of claim 1, wherein said lifting platform and said elevator comprise cooperating ramps that upon relative translation of said lifting platform and said elevator cause said ramps to cooperatively engage and move said lifting platform and said elevator relatively away from each other in the direction of expansion.
3. The inserter of claim 2, wherein said lifting platform is coupled to said trigger actuator for translational movement and said elevator is attached to said barrel in a fixed position. 4. The inserter of claim 3, wherein said driver is coupled to said trigger actuator for translational movement relative to said elevator.
5. The inserter of claim 4, wherein said lifting platform includes an upper surface for supporting said insert and a lower opposing surface defining said cooperating ramps.
6. The inserter of claim 5, wherein said driver and said lifting platform are coupled to said trigger actuator to move independently upon operation of said trigger actuator.
7. The inserter of claim 6, wherein said driver and said lifting platform are coupled to said trigger actuator to move independently of each other upon operation of a single stroke of said trigger actuator.
8. The inserter of claim 7, wherein said lifting platform is coupled to said trigger actuator to move before movement of said driver and cause said superior endplate to lift relative to said inferior endplate.
9. The inserter of claim 8, wherein said lifting platform is coupled to said trigger actuator to hold the position of said superior endplate in a lifted position relative to said inferior endplate during operation of said trigger actuator while said driver is moved during such operation to push said insert at least partially between said superior endplate and said inferior endplate.
10. The inserter of claim 9, wherein said lifting platform is coupled to said trigger actuator to retract said lifting platform towards said elevator after said insert is positioned at least partially between said superior endplate and said inferior endplate, said driver being coupled to
16 said trigger actuator to advance said insert thereafter substantially fully between said superior endplate and said inferior endplate.
11. The inserter of claim 10, wherein said lifting movement of said lifting platform relative to said elevator, said translational movement of said driver insert for pushing said insert into said device and said retraction movement of said lifting platform towards said elevator are effected in a single operational stroke of said trigger actuator.
12. The inserter of claim 11 , wherein said trigger actuator comprises a linkage mechanism that substantially prevents translational movement of said driver until the lifting movement of said lifting platform is completed.
13. The inserter of claim 12, wherein said barrel movably supports a further insert insertable upon operation of said trigger actuator between said at least first insert and said inferior endplate.
14. An apparatus for use in spinal interbody fusion, comprising:
an expandable interbody fusion device including an inferior endplate having an outer surface configured to contact a vertebral body of the spine, a superior endplate having an outer surface configured to contact an opposing vertebral body of said spine, said inferior endplate and said superior endplate being movable relative to each other in a direction of expansion, said device including at least one insert insertable into said device between said inferior endplate and said superior endplate upon expansion of said device; and
an elongate inserter having a distal end and a proximal end, said distal end of said inserter being releasably attached to said device, said inserter including an actuator at said proximal end, said inserter comprising a lifting platform between said inferior endplate and said superior endplate and operably coupled to said actuator for lifting one of said superior endplate and an insert within said device, and a driver operably coupled to said actuator to insert said at least one insert into said device, said inserter including an elongate track linearly supporting a plurality of inserts for sequential insertion into said device one below the other.
17
15. The apparatus of claim 14, wherein said inserter comprises an elevator at said distal end, said elevator having an upper surface and a lower surface, said lower surface being in engagement with an interior surface of said inferior endplate. 16. The apparatus of claim 15, wherein said lifting platform has a lower surface, the lower surface of said lifting platform and the upper surface of said elevator comprising cooperatively engaging ramps.
17. The apparatus of claim 16, wherein said elevator is disposed in a fixed position relative to said inferior endplate and said lifting platform is coupled to said actuator for translational movement relative to said elevator upon operation of said actuator to cause said ramps to cooperatively engage and thereby move said lifting platform and said elevator relatively away from each other in the direction of expansion. 18. The apparatus of claim 14, wherein said actuator comprises a trigger actuator including a handle and a bar linkage mechanism pivotally coupled thereto.
1 . The apparatus of claim 14, wherein said apparatus further comprises a guide pin releasably connected to said device and detachably connected to said inserter.
20. The apparatus of claim 14, wherein said at least one insert comprises a locking structure to interlock said at least one insert to said superior endplate upon insertion into said device. 21. The apparatus of claim 20, wherein said at least one insert comprises a locking structure to interlock said at least one insert to a subsequent insert inserted below said at least one insert.
22. An inserter for expanding an expandable spinal interbody fusion device and inserting an insert there within, comprising:
18 a barrel including an elongate track linearly supporting a plurality of inserts for sequential insertion into said device one below the other;
an elongate lifting platform supported by said track and movable relative to said barrel for expanding said device;
an elongate driver movably coupled to said lifting platform for inserting an insert from said plurality of inserts into said device one at a time; and
an actuator supported by said barrel and operably coupled to said lifting platform and said driver to cause movement of said lifting platform and movement of said driver upon operation thereof, said movement of said lifting platform expanding said device and said movement of said driver inserting each said insert into said device.
23. The inserter of claim 22, further comprising a guide pin releasably connectable to said device and detachably connected to said barrel. 24. The inserter of claim 22, wherein said movement of said lifting platform for expanding said device and said movement of said driver for inserting said insert into said device are effected in a single operational stroke of said actuator for the insertion of each insert.
25. The inserter of claim 24, wherein said actuator comprises a trigger actuator including a handle pivotally connected to said barrel, wherein the single stroke of operation is initiated when said handle is in a starting position and squeezed and is completed when said handle is released and returns to its starting position.
26. The inserter of claim 25, wherein said actuator further comprises a bar linkage mechanism pivotally connected to said handle.
19
PCT/US2014/019028 2013-03-13 2014-02-27 Inserter for expanding an expandable interbody fusion device WO2014163936A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14779285.7A EP2967917B1 (en) 2013-03-13 2014-02-27 Inserter for expanding an expandable interbody fusion device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/799,792 US8828019B1 (en) 2013-03-13 2013-03-13 Inserter for expanding an expandable interbody fusion device
US13/799,792 2013-03-13

Publications (3)

Publication Number Publication Date
WO2014163936A2 WO2014163936A2 (en) 2014-10-09
WO2014163936A3 WO2014163936A3 (en) 2015-05-14
WO2014163936A4 true WO2014163936A4 (en) 2015-07-09

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Family Applications (1)

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PCT/US2014/019028 WO2014163936A2 (en) 2013-03-13 2014-02-27 Inserter for expanding an expandable interbody fusion device

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US (3) US8828019B1 (en)
EP (1) EP2967917B1 (en)
WO (1) WO2014163936A2 (en)

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US9545313B2 (en) 2017-01-17
US8828019B1 (en) 2014-09-09
EP2967917A2 (en) 2016-01-20
EP2967917A4 (en) 2016-03-23
WO2014163936A3 (en) 2015-05-14
US9039767B2 (en) 2015-05-26
US20140277479A1 (en) 2014-09-18
WO2014163936A2 (en) 2014-10-09
US20150335442A1 (en) 2015-11-26
US20140364950A1 (en) 2014-12-11

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