WO2003028595A8 - Artificial intervertebral disc having a slotted belleville washer force restoring element - Google Patents

Artificial intervertebral disc having a slotted belleville washer force restoring element

Info

Publication number
WO2003028595A8
WO2003028595A8 PCT/US2002/019660 US0219660W WO03028595A8 WO 2003028595 A8 WO2003028595 A8 WO 2003028595A8 US 0219660 W US0219660 W US 0219660W WO 03028595 A8 WO03028595 A8 WO 03028595A8
Authority
WO
WIPO (PCT)
Prior art keywords
washer
belleville washer
intervertebral disc
restoring element
artificial intervertebral
Prior art date
Application number
PCT/US2002/019660
Other languages
French (fr)
Other versions
WO2003028595A1 (en
Inventor
James D Ralph
Stephen Tatar
Original Assignee
Third Millennium Engineering L
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 Third Millennium Engineering L filed Critical Third Millennium Engineering L
Priority to AU2002316316A priority Critical patent/AU2002316316B2/en
Priority to EP02746610A priority patent/EP1437988B1/en
Priority to JP2003531935A priority patent/JP4202918B2/en
Priority to DE60235824T priority patent/DE60235824D1/en
Priority to CA002461791A priority patent/CA2461791C/en
Priority to AT02746610T priority patent/ATE462381T1/en
Priority to IL16113602A priority patent/IL161136A0/en
Publication of WO2003028595A1 publication Critical patent/WO2003028595A1/en
Priority to IL161136A priority patent/IL161136A/en
Publication of WO2003028595A8 publication Critical patent/WO2003028595A8/en

Links

Classifications

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    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
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    • A61F2220/0058—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements soldered or brazed or welded
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    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00365—Proteins; Polypeptides; Degradation products thereof

Abstract

An artificial disc having a pair of opposing plates (330, 400) for seating against opposing vertebral bone surfaces, separated by at least one spring mechanism. The preferred spring mechanism is at least one spirally slotted belleville washer, and in some embodiments the belleville washer (330b) is also radially thinning or thickening. For double washer embodiments, the wide ends of the washers seat against respective opposing plates, in some embodiments each being maintained somewhat to a retaining wall (306) and ring (310) or a circular recess and retaining shield. For single washer embodiments, the narrow end of the washer is formed with a curvate socket (332b) for rotatably mounting onto a semispherical protuberance (410) extending from one plates.
PCT/US2002/019660 2001-10-01 2002-06-19 Artificial intervertebral disc having a slotted belleville washer force restoring element WO2003028595A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AU2002316316A AU2002316316B2 (en) 2001-10-01 2002-06-19 Artificial intervertebral disc having a slotted belleville washer force restoring element
EP02746610A EP1437988B1 (en) 2001-10-01 2002-06-19 Artificial intervertebral disc having a slotted belleville washer force restoring element
JP2003531935A JP4202918B2 (en) 2001-10-01 2002-06-19 Artificial intervertebral disc with slotted Belleville washers as restoring force supply member
DE60235824T DE60235824D1 (en) 2001-10-01 2002-06-19 ARTIFICIAL BELT WITH SLOTTED BELLEVILLEMENT
CA002461791A CA2461791C (en) 2001-10-01 2002-06-19 Artificial intervertebral disc having a slotted belleville washer force restoring element
AT02746610T ATE462381T1 (en) 2001-10-01 2002-06-19 ARTIFICIAL DISC WITH SLOTTED BELLEVILLE WASHER AS A FORCE-RESTORING ELEMENT
IL16113602A IL161136A0 (en) 2001-10-01 2002-06-19 Artificial intervertebral disc
IL161136A IL161136A (en) 2001-10-01 2004-03-29 Artificial intervertebral disc

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/968,045 US6740117B2 (en) 2001-02-15 2001-10-01 Intervertebral spacer device having a radially thinning slotted belleville spring
US09/968,045 2001-10-01

Publications (2)

Publication Number Publication Date
WO2003028595A1 WO2003028595A1 (en) 2003-04-10
WO2003028595A8 true WO2003028595A8 (en) 2004-08-19

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PCT/US2002/019660 WO2003028595A1 (en) 2001-10-01 2002-06-19 Artificial intervertebral disc having a slotted belleville washer force restoring element

Country Status (9)

Country Link
US (4) US6740117B2 (en)
EP (3) EP2177180B1 (en)
JP (1) JP4202918B2 (en)
AT (1) ATE462381T1 (en)
AU (1) AU2002316316B2 (en)
CA (1) CA2461791C (en)
DE (1) DE60235824D1 (en)
IL (2) IL161136A0 (en)
WO (1) WO2003028595A1 (en)

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