CA2342633A1 - Peanut spectacle multi discoid thoraco-lumbar disc prosthesis - Google Patents

Peanut spectacle multi discoid thoraco-lumbar disc prosthesis Download PDF

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Publication number
CA2342633A1
CA2342633A1 CA002342633A CA2342633A CA2342633A1 CA 2342633 A1 CA2342633 A1 CA 2342633A1 CA 002342633 A CA002342633 A CA 002342633A CA 2342633 A CA2342633 A CA 2342633A CA 2342633 A1 CA2342633 A1 CA 2342633A1
Authority
CA
Canada
Prior art keywords
spectacle
peanut
discoid
thoraco
housing
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
CA002342633A
Other languages
French (fr)
Other versions
CA2342633C (en
Inventor
Vincent Bryan
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.)
SDGI Holdings Inc
Original Assignee
Spinal Dynamics Corporation
Vincent Bryan
Medtronic Sofamor Danek, Inc.
Sdgi Holdings, 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 Spinal Dynamics Corporation, Vincent Bryan, Medtronic Sofamor Danek, Inc., Sdgi Holdings, Inc. filed Critical Spinal Dynamics Corporation
Priority claimed from US09/786,073 external-priority patent/US6749635B1/en
Publication of CA2342633A1 publication Critical patent/CA2342633A1/en
Application granted granted Critical
Publication of CA2342633C publication Critical patent/CA2342633C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/441Joints for the spine, e.g. vertebrae, spinal discs made of inflatable pockets or chambers filled with fluid, e.g. with hydrogel
    • AHUMAN NECESSITIES
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    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30721Accessories
    • A61F2/30742Bellows or hose-like seals; Sealing membranes
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    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
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    • A61F2002/30014Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in elasticity, stiffness or compressibility
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    • A61F2002/30016Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in hardness, e.g. Vickers, Shore, Brinell
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    • A61F2002/30123Rounded shapes, e.g. with rounded corners circular with lobes with two diametrically opposed lobes
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    • AHUMAN NECESSITIES
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    • A61F2250/0014Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0019Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in hardness, e.g. Vickers, Shore, Brinell

Abstract

A small profile, peanut spectacle-shaped prosthetic disc device (20) is provided. The device housing is comprised of two longitudinally split hollow halves (22, 24), between which are contained multiple discoid shaped resilient bodies (41, 42) which may be of a polymeric type, or they may contain hydrogel.
These bodies may lie in concave surfaces (51, 52) located on the interior of each side of the split cylindrical housing. The housing halves, even under maximum physiological loads, do not contact one another directly. The shell shape permits relatively easy introduction of the intervertebral spaces in the thoracic or lumbar region of the human spine.
CA002342633A 1998-09-04 1999-09-03 Peanut spectacle multi discoid thoraco-lumbar disc prosthesis Expired - Fee Related CA2342633C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US9927798P 1998-09-04 1998-09-04
US60/099,277 1998-09-04
US09/786,073 US6749635B1 (en) 1998-09-04 1999-09-03 Peanut spectacle multi discoid thoraco-lumbar disc prosthesis
PCT/US1999/020457 WO2000013619A1 (en) 1998-09-04 1999-09-03 Peanut spectacle multi discoid thoraco-lumbar disc prosthesis
US10/443,422 US20030199982A1 (en) 1998-09-04 2003-05-22 Peanut spectacle multi discoid thoraco-lumbar disc prosthesis

Publications (2)

Publication Number Publication Date
CA2342633A1 true CA2342633A1 (en) 2000-03-16
CA2342633C CA2342633C (en) 2007-11-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA002342633A Expired - Fee Related CA2342633C (en) 1998-09-04 1999-09-03 Peanut spectacle multi discoid thoraco-lumbar disc prosthesis

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US (2) US20030199982A1 (en)
EP (1) EP1109516A4 (en)
JP (1) JP2002524141A (en)
AU (1) AU754516B2 (en)
CA (1) CA2342633C (en)
WO (1) WO2000013619A1 (en)

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US20030199982A1 (en) 2003-10-23

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