CA2650756A1 - Method and apparatus for replacing a damaged spinal disc - Google Patents

Method and apparatus for replacing a damaged spinal disc Download PDF

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Publication number
CA2650756A1
CA2650756A1 CA002650756A CA2650756A CA2650756A1 CA 2650756 A1 CA2650756 A1 CA 2650756A1 CA 002650756 A CA002650756 A CA 002650756A CA 2650756 A CA2650756 A CA 2650756A CA 2650756 A1 CA2650756 A1 CA 2650756A1
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CA
Canada
Prior art keywords
retaining
core
retaining device
mounting member
engageable
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.)
Granted
Application number
CA002650756A
Other languages
French (fr)
Other versions
CA2650756C (en
Inventor
Edward C. Benzel
Isador H. Lieberman
Lee Strnad
James M. Kuras
Raymond S. Ross
Charles F. Birchall, Jr.
Keith Duke
Kari Zimmers
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.)
Axiomed Spine Corp
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2650756A1 publication Critical patent/CA2650756A1/en
Application granted granted Critical
Publication of CA2650756C publication Critical patent/CA2650756C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

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    • 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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    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
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    • 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
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/025—Joint distractors
    • A61B2017/0256—Joint distractors for the spine
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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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/005—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
    • A61F2250/0097—Visible markings, e.g. indicia
    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00011—Metals or alloys
    • A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys

Abstract

A method for replacing a damaged spinal disc (10) between first and second vertebrae of a spinal column includes connecting a first mounting member (100) with the first vertebra of the spinal column. An artificial disc (10) is moved between the first and second vertebrae and into engagement with the first mounting member (100) to guide the artificial disc into position between the first and second vertebrae. The artificial disc includes a resilient core (90) having a first surface and a second surface, a first retaining member (20) connected to the first surface of the resilient core (90), and a second retaining member (60) connected to the second surface of the resilient core (90). The first retaining member (20) has an outer surface engageable with a first vertebra of the spinal column and an inner surface facing the first surface of the resilient core (90). The second retaining member (60) has an outer surface engageable with the second vertebra of the spinal column and an inner surface facing the second surface of the resilient core (90). An apparatus for replacing a damaged spinal disc in a spinal column includes a first retaining device (20) connected to the first surface of the resilient core (90). A
second retaining device (60) is connected to the second surface of the resilient core (90). The second retaining device (60) has an outer surface engageable with a second vertebra and an inner surface facing the second surface of the resilient core (90). The inner surface of the first retaining device is spaced from the core (90). The core (90) deflects into engagement with the inner surface of the first retaining device (20) upon relative movement between the first and second retaining devices (20&60).

Claims (6)

1. An apparatus for replacing a damaged spinal disc in a spinal column, said apparatus comprising:

a resilient core having a first surface and a second surface;

a first retaining device connected to said first surface of said resilient core, said first retaining device having an outer surface engageable with a first vertebra of the spinal column and an inner surface facing said first surface of said resilient core; and a second retaining device connected to said second surface of said resilient core, said second retaining device having an outer surface engageable with a second vertebra of the spinal column and an inner surface facing said second surface of said resilient core;

said inner surface of said first retaining device being spaced from said core, said core deflecting into engagement with said inner surface of said first retaining device upon relative movement between said first and second retaining devices.
2. An apparatus as defined in claim 1 wherein said core includes a radially outer surface extending between said first and second surfaces of said core, said radially outer surface facing a portion of one of said first and second retaining devices, said radially outer surface being spaced from said portion of said one of said first and second retaining devices, said core deflecting into engagement with said portion of one of said first and second retaining devices upon relative movement between said first and second retaining devices.
3. An apparatus as defined in claim 1 wherein said first retaining device includes a portion engageable with a surgical tool for inserting said first retaining device between the first and second vertebrae, said portion of said first retaining device including an opening into which a portion of the surgical tool extends.
4. An apparatus as defined in claim 1 wherein said first retaining device includes a first mounting member and a first retaining member, said first retaining member having said outer surface engageable with the first vertebra and an inner surface affixed to said first surface of said core, said first mounting member including said inner surface facing said core that said core engages upon relative movement between said first and second retaining devices, said first retaining member having an opening extending through said inner and outer surfaces of said first retaining member, said first mounting member being located in said opening.
5. An apparatus as defined in claim 4 wherein one of said first retaining member and said first mounting member includes a guide engageable with another of said first retaining member and said first mounting member to guide movement of said first retaining member into position between the first and second vertebrae.
6. An apparatus as defined in claim 1 wherein said first mounting member has a frustoconical surface engaging a frustoconical surface on said first retaining member, to prevent said first mounting member from moving relative to said first retaining member.
CA2650756A 2003-12-10 2004-12-08 Method and apparatus for replacing a damaged spinal disc Expired - Fee Related CA2650756C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US10/731,964 2003-12-10
US10/731,942 2003-12-10
US10/732,660 US7128761B2 (en) 2003-12-10 2003-12-10 Method and apparatus for replacing a damaged spinal disc
US10/731,942 US7588600B2 (en) 2003-12-10 2003-12-10 Method for replacing a damaged spinal disc
US10/732,660 2003-12-10
US10/731,964 US7695517B2 (en) 2003-12-10 2003-12-10 Apparatus for replacing a damaged spinal disc
CA002549101A CA2549101C (en) 2003-12-10 2004-12-08 Method and apparatus for replacing a damaged spinal disc

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CA2650756C CA2650756C (en) 2012-01-31

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EP (2) EP2387976A1 (en)
JP (1) JP4750042B2 (en)
KR (1) KR100753465B1 (en)
CN (2) CN101816596B (en)
AT (1) ATE534350T1 (en)
AU (1) AU2004299008B2 (en)
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US20050131542A1 (en) 2005-06-16
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WO2005058194A2 (en) 2005-06-30
US7695517B2 (en) 2010-04-13

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