WO2019183405A1 - Implant tlif orientable et installateur - Google Patents
Implant tlif orientable et installateur Download PDFInfo
- Publication number
- WO2019183405A1 WO2019183405A1 PCT/US2019/023446 US2019023446W WO2019183405A1 WO 2019183405 A1 WO2019183405 A1 WO 2019183405A1 US 2019023446 W US2019023446 W US 2019023446W WO 2019183405 A1 WO2019183405 A1 WO 2019183405A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cage
- arcuate
- implant
- distal end
- tlif
- Prior art date
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Classifications
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- 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
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- 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
- A61F2/4465—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 having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine
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- 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
- A61F2002/4629—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 connected to the endoprosthesis or implant via a threaded connection
Definitions
- a spinal fusion uses an implant or device known as an interbody cage or spacer along with bone graft and/or bone graft substitute that is inserted into the disc space between adjacent vertebrae from one side of the spine.
- additional surgical hardware such as pedicle screws and rods or plates are attached to the back of the vertebrae. As the bone graft heals, it fuses the adjacent vertebrae to form one long vertebra.
- the implant has a generally linear body. In another form, the implant has a curved body.
- the insertion instrument is characterized by a handle supporting a frame that is attached to a hollow shaft.
- a rod having a threaded end extends through the hollow shaft and is connected to a first or upper knob/controller within the frame, the threaded end of the rod configured to be threadedly received in the threaded bore of the pivot post. Rotation of the first knob rotates the rod to thread (attach) or unthread (detach) the threaded end from the pivot post (i.e. controls attachment).
- the insertion instrument also has a second
- Fig. 9 is an isometric view of the steerable TLIF spine implant of Fig. 8.
- Fig. 21 is an isometric view of the steerable TLIF spine implant of Fig. 15;
- Fig. 24 is an enlarged isometric view of the distal end portion of the implantation instrument of Fig. 22 with a movable installation tang thereof in an extended position;
- Fig. 25 is an enlarged isometric view of the distal end portion of the implantation instrument of Fig. 22 with the movable installation tang thereof in a retracted position;
- Fig. 26 is a top sectional view of the steerable TLIF spine implant of Fig. 15 attached to the implantation instrument of Fig. 22;
- Fig. 27 is an enlarged isometric view of the distal end portion of the implantation instrument of Fig. 22 with the movable tang in an extended position;
- the post 14 is particularly shown in Fig. 3.
- the post 14 has a generally cylindrical body 13 with a head 18 on one end defining an under surface 19. As seen in Fig. 2, the under surface 19 is retained by a ledge of a bore of the cage 12.
- the post 14 also has a threaded hole 16 in its outer surface preferably, but not necessarily having a tapered region 17 surrounding the threaded hole 16. The tapered region 17 aids in receiving a threaded rod 53 of an insertion instrument 50.
- the post 13 further has a radial slot 20 in its outer surface that is preferably, but not necessarily, adjacent the under surface 19 of the head.
- the radial slot 20 has a length that determines the amount of rotation of the cage 12 about and relative to the post 13 as described herein. Changing the length of the slot 20 changes the amount of cage rotation/angulation. The longer the length, the greater the amount of rotation/angulation.
- the cage 112 has a bore that extends from the outer surface of the cage 112 to a large bore 142 of the head 134 of the cage 112.
- a retaining pin 40 is received in the bore that extends into the large bore 142 of the head 134 and into the radial slot 20a, thus rotationally constraining the rotation between the post l4a and the cage 112 to the arcuate length of the slot 20a.
- the retaining pin 40 also axially retains the post 114 in the bore 142.
- the implant 200 may be used as a spine implant for places other than the lumbar region and for purposes other than transforaminal.
- the present spine implant 200 will hereinafter be discussed as a TLIF implant 200.
- the TLIF implant 200 is made from a biocompatible material such as, but not limited to, titanium, stainless steel, an alloy of titanium or stainless steel, PEEK, solid PEEK, other plastics and polymers, and otherwise.
- the TLIF implant 200 is characterized by a cage 201, a pivot post 202, and a retaining pin 203.
- the pivot post 202 is preferably, but not necessarily, removable from and insertable into the cage 201 and allows the cage 201 to rotate relative to the pivot post 202.
- the hollow shaft 305 has a series of ports 307 along its longitudinal length.
- the hollow shaft 305 has a longitudinal groove 308 along a first lateral side that retains an elongated rail 309 such that the elongated rail 309 is longitudinally movable in the longitudinal groove 308.
- the elongated rail 309 is connected at its proximal end to the second controller/knob 304.
- the second controller 304 is longitudinally movable or translatable on and along the hollow shaft 305.
- the movable bar 309 is disposed in a lateral channel 308 in a lateral side of the hollow shaft 305 such that the movable bar 309 is longitudinally movable or translatable in the channel 308.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Physical Education & Sports Medicine (AREA)
- Prostheses (AREA)
Abstract
Un implant de colonne vertébrale pour une procédure chirurgicale TLIF est configuré pour être guidé à sa place pendant l'implantation conjointement avec un instrument d'insertion complémentaire. La cage de l'implant est contrainte sur une plage de rotation limitée autour d'un montant pivotant porté par la cage. L'instrument d'insertion est configuré pour maintenir le montant tout en faisant tourner de manière contrôlée la cage par rapport au montant afin de positionner angulairement l'implant pendant l'implantation. La plage de mouvement de rotation est contrôlée par la configuration d'une ouverture dans et à l'extrémité de la cage et d'une rainure dans le montant de pivot. Une broche de retenue de l'implant s'étend depuis la cage jusque dans la rainure du montant pour relier de façon rotative la cage au montant.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862646067P | 2018-03-21 | 2018-03-21 | |
US62/646,067 | 2018-03-21 | ||
US15/957,893 | 2018-04-19 | ||
US15/957,893 US10617534B2 (en) | 2017-04-19 | 2018-04-19 | Steerable TLIF spine implants |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019183405A1 true WO2019183405A1 (fr) | 2019-09-26 |
Family
ID=67986367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2019/023446 WO2019183405A1 (fr) | 2018-03-21 | 2019-03-21 | Implant tlif orientable et installateur |
Country Status (1)
Country | Link |
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WO (1) | WO2019183405A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110276142A1 (en) * | 2008-10-13 | 2011-11-10 | Marcin Niemiec | Articulating Spacer |
US20130103102A1 (en) * | 2011-10-21 | 2013-04-25 | Ebi, Llc | Curved Spacer and Inserter |
US20140058513A1 (en) * | 2012-08-27 | 2014-02-27 | Kevin Gahman | Intervertebral Implant |
US20160113776A1 (en) * | 2014-10-27 | 2016-04-28 | Warsaw Orthopedic, Inc. | Spinal implant system and method |
-
2019
- 2019-03-21 WO PCT/US2019/023446 patent/WO2019183405A1/fr active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110276142A1 (en) * | 2008-10-13 | 2011-11-10 | Marcin Niemiec | Articulating Spacer |
US20130103102A1 (en) * | 2011-10-21 | 2013-04-25 | Ebi, Llc | Curved Spacer and Inserter |
US20140058513A1 (en) * | 2012-08-27 | 2014-02-27 | Kevin Gahman | Intervertebral Implant |
US20160113776A1 (en) * | 2014-10-27 | 2016-04-28 | Warsaw Orthopedic, Inc. | Spinal implant system and method |
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