CA2323922A1 - Percutaneous prosthetic spinal disc nucleus and method of manufacture - Google Patents

Percutaneous prosthetic spinal disc nucleus and method of manufacture Download PDF

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Publication number
CA2323922A1
CA2323922A1 CA002323922A CA2323922A CA2323922A1 CA 2323922 A1 CA2323922 A1 CA 2323922A1 CA 002323922 A CA002323922 A CA 002323922A CA 2323922 A CA2323922 A CA 2323922A CA 2323922 A1 CA2323922 A1 CA 2323922A1
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CA
Canada
Prior art keywords
spinal disc
disc nucleus
constraining jacket
prosthetic spinal
manufacture
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
CA002323922A
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French (fr)
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CA2323922C (en
Inventor
Robert L. Assell
Charles D. Ray
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RayMedica LLC
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Individual
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Publication of CA2323922A1 publication Critical patent/CA2323922A1/en
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Publication of CA2323922C publication Critical patent/CA2323922C/en
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Expired - Fee Related legal-status Critical Current

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    • A61F2/441—Joints for the spine, e.g. vertebrae, spinal discs made of inflatable pockets or chambers filled with fluid, e.g. with hydrogel
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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
    • 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
    • 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
    • A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers

Abstract

A capsule-shaped prosthetic spinal disc nucleus (20) for implantation into a human intradiscal space (60), made of a substantially inelastic constraining jacket (24) surrounding an amorphous polymer core (22). The constraining jacket (24) has a generally fixed maximum volume and defines a height. The amorphous polymer core (22) fills an initial volume of the constraining jacket (24) and develops an internal pressure. In response to the internal pressure, the constraining jacket (24) transitions toward the maximum volume, increasing substantially in height.
CA002323922A 1998-03-16 1999-03-16 Percutaneous prosthetic spinal disc nucleus and method of manufacture Expired - Fee Related CA2323922C (en)

Applications Claiming Priority (3)

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US09/039,582 1998-03-16
US09/039,582 US6022376A (en) 1997-06-06 1998-03-16 Percutaneous prosthetic spinal disc nucleus and method of manufacture
PCT/US1999/005757 WO1999047082A1 (en) 1998-03-16 1999-03-16 Percutaneous prosthetic spinal disc nucleus and method of manufacture

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CA2323922A1 true CA2323922A1 (en) 1999-09-23
CA2323922C CA2323922C (en) 2004-03-09

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EP (1) EP1063948B1 (en)
JP (3) JP2002506678A (en)
KR (1) KR100647762B1 (en)
AT (1) ATE355802T1 (en)
AU (1) AU742901B2 (en)
BR (1) BR9908824A (en)
CA (1) CA2323922C (en)
DE (1) DE69935425T2 (en)
ES (1) ES2283108T3 (en)
WO (1) WO1999047082A1 (en)
ZA (1) ZA200005580B (en)

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