Join
today

Boliven PRO is more than just patent search

  • Build and save lists using the powerful Lists feature
  • Analyze and download your search results
  • Share patent search results with your clients

Patents »

US7118599: Artificial intervertebral disc

Share

Filing Information

Inventor(s) Joseph P. Errico · Michael W. Dudasik · Rafail Zubok ·
Assignee(s) SpineCore, Inc. ·
Attorney/Agent(s) Lerner, David, Littenberg, Krumholz & Mentlik, LLP ·
Primary Examiner Brian E Pellegrino ·
Application Number US10294980
Filing date 11/14/2002
Issue date 10/10/2006
Prior Publication Data
Predicted expiration date 12/25/2021
Patent term adjustment 162
U.S. Classifications 623/171.4  · 623/171.1  ·
International Classifications A61F244  ·
Kind CodeB2
Related U.S. Application DataCROSS-REFERENCE TO RELATED APPLICATIONS
The present application is a continuation application of U.S. patent application Ser. No. 10/256,160 (filed Sep. 26, 2002) entitled “Artificial Intervertebral Disc”, which is a continuation-in-part application of U.S. patent application Ser. No. 10/175,417 (filed Jun. 19, 2002) entitled “Artificial Intervertebral Disc Utilizing a Ball Joint Coupling”, which is a continuation-in-part application of U.S. patent application Ser. No. 10/151,280 (filed May 20, 2002) entitled “Tension Bearing Artificial Disc Providing a Centroid of Motion Centrally Located Within an Intervertebral Space”, which is a continuation-in-part application of both U.S. patent application Ser. No. 09/970,479 (filed Oct. 4, 2001) entitled “Intervertebral Spacer Device Utilizing a Spirally Slotted Belleville Washer Having Radially Extending Grooves,” now U.S. Pat. No. 6,669,730, as well as U.S. patent application Ser. No. 10/140,153 (filed May 7, 2002) entitled “Artificial Intervertebral Disc Having a Flexible Wire Mesh Vertebral Body Contact Element”, the former being a continuation-in-part application of U.S. patent application Ser. No. 09/968,046 (filed Oct. 1, 2001) now abandoned entitled “Intervertebral Spacer Device Utilizing a Belleville Washer Having Radially Extending Grooves” and the latter being a continuation-in-part application of both U.S. patent application Ser. No. 09/970,479 (detailed above) now U.S. Pat. No. 6,669,730 as well as U.S. patent application Ser. No. 10/128,619 (filed Apr. 23, 2002) entitled “Intervertebral Spacer Having a Flexible Wire Mesh Vertebral Body Contact Element”, now U.S. Pat. No. 6,863,689, which is a continuation-in-part application of both U.S. patent application Ser. No. 09/906,119 (filed Jul. 16, 2001) and entitled “Trial Intervertebral Distraction Spacers,” now U.S. Pat. No. 6,607,559, as well as U.S. patent application Ser. No. 09/982,148 (filed Oct. 18, 2001) and entitled “Intervertebral Spacer Device Having Arch Shaped Spring Elements”, now U.S. Pat. No. 6,673,113. All of the above mentioned applications are hereby incorporated by reference herein in their respective entireties.
This invention relates generally to a spinal implant assembly for implantation into the intervertebral space between adjacent vertebral bones to simultaneously provide stabilization and continued flexibility and proper anatomical motion, and more specifically to such a device that has limited rotation using a captured ball and socket joint with a solid ball, a retaining cap, and an interference pin.
20 Claims, 43 Drawings


Abstract

An artificial disc having a pair of opposing baseplates, for seating against opposing vertebral bone surfaces, separated by a ball and socket joint that includes a solid ball mounted to protrude from one of the baseplates. The ball is captured within a curvate socket formed in a peak of a convex structure integral with the other of the baseplates. The socket is formed by opposing curvate pockets, one on vex structure and one on a cap secured to the other of the baseplates. While the ball angulates in the socket, its rotation in the socket has a limited range due to interference between an interference pin's rounded head that extends into the socket and a curvate recess on the ball. The ball and socket joint therefore permits the baseplates to rotate relative to one another through a limited range and also angulate relative to one another.

Independent Claims | See all claims (20)

  1. 1. An intervertebral spacer device, comprising: a first baseplate, having an outwardly facing surface and an inwardly facing surface, the inwardly facing surface having a central hole; a second baseplate, having an outwardly facing surface and an integrated convex structure, the convex structure including a curvate pocket and a lateral bore adjacent the convex structure's curvate pocket, the lateral bore having a pin secured therethrough, the pin having a rounded head that protrudes into the convex structure's curvate pocket, the convex structure's curvate pocket being formed by a central portion of an outwardly facing surface of the convex structure concaving inwardly to define a semispherical contour, the convex structure's curvate pocket further having an apex at a center of the convex structure's curvate pocket's semispherical contour, the convex structure further having a central bore through the convex structure's curvate pocket's apex from the convex structure's outwardly facing surface to the convex structure's inwardly facing surface, the second baseplate having on its outwardly facing surface an access hole leading to the convex structure's curvate pocket; a post having a longitudinal axis, a tail end, and a head end having a ball defining a spherical contour and having a curvate recess; and a cap having an inwardly facing surface and a curvate pocket having a semispherical contour, the cap's curvate pocket being formed by a central portion of the cap's inwardly facing surface concaving outwardly; wherein the tail end is disposable through the access hole and through the central bore, and the head end is disposable through the access hole and prevented from passage through the central bore, such that the ball is seatable in the convex structure's curvate pocket with the ball's curvate recess accommodating the pin's rounded head; and wherein the tail end is securable in the central hole; and wherein the cap is securable to the second baseplate such that the cap's curvate pocket's semispherical contour opposes the convex structure's curvate pocket's semispherical contour such that the semispherical contours together define a curvate socket defining a spherical contour, into which curvate socket the pin's rounded head thus extends, that closely accommodates the ball's spherical contour for rotation and angulation of the ball in the curvate socket about a central portion of the ball, with the ball's curvate recess accommodating the pin's rounded head to limit rotation of the ball in the curvate socket, and such that the post is accommodated for rotation in the bore about the longitudinal axis as the ball rotates in the curvate socket, and such that the post is accommodated for angulation in the bore about the ball's central portion as the ball angulates in the curvate socket.
  2. 10. An intervertebral spacer device, comprising: a first baseplate, having an outwardly facing surface and an inwardly facing surface, the inwardly facing surface having a central post secured thereto, the post having a longitudinal axis and a ball at a head end of the post that is inwardly directed toward the second baseplate, the ball defining a spherical contour and having a curvate recess; a second baseplate, having an outwardly facing surface and an inwardly facing surface, the second baseplate including a convex structure integral therewith and a cap secured thereto, the convex structure and the cap together establishing a curvate socket communicating with a central bore through the convex structure, the curvate socket defining a spherical contour, the convex structure further having a lateral bore, the lateral bore having a pin secured therethrough, the pin having a rounded head that extends into the curvate socket; wherein the ball is capturable in the curvate socket, with the curvate socket's spherical contour accommodating the ball's spherical contour for rotation and angulation of the ball in the curvate socket about a central portion of the ball; with the ball's curvate recess accommodating the pin's rounded head to limit rotation of the ball in the curvate socket; and with the central bore accommodating the post for rotation in the central bore about the longitudinal axis as the ball rotates in the curvate socket, and accommodating the post for angulation in the central bore about the ball's central portion as the ball angulates in the curvate socket.
  3. 19. An artificial intervertebral disc, comprising: a first baseplate, having an outwardly facing surface and an inwardly facing surface, the inwardly facing surface having a central hole; a second baseplate, having an outwardly facing surface and an inwardly facing surface; an inwardly directed convex structure integral with the second baseplate, the convex structure forming a curvate pocket having a semispherical contour on the second baseplate's outwardly facing surface, the convex structure further having a lateral bore adjacent the convex structure's curvate pocket, the lateral bore having a pin secured therethrough, the pin having a rounded head that protrudes into the convex structure's curvate pocket, the convex structure further having a central bore aligned with the central hole and passing from the convex structure's curvate pocket to the second baseplate's inwardly facing surface; a ball at a head end of a post, the ball having a curvate recess having boundaries, the ball being seatable in the convex structure's curvate pocket with the post disposed through the central bore, the post having a tail end securable in the central hole; and a cap forming a curvate pocket having a semispherical contour, the cap being securable to the second baseplate with the cap's curvate pocket opposing the convex structure's curvate pocket to form a curvate socket within which the ball is rotatable and angulatable about a central portion of the ball; wherein the ball is seatable in the convex structure's curvate pocket with the ball's curvate recess accommodating the pin's rounded head such that the ball's curvate recess's boundaries define limits of rotation of the ball within the curvate socket in that the ball's rotation within the curvate socket is limited by interference between the rounded head and the boundaries, and such that the boundaries accommodate angulation of the ball within the curvate socket.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US2193122 Crabbs Mar 1940
US3867728 CUTTER LAB Stubstad et al. Feb 1975
US4309777 Patil Jan 1982
US4566466 RIPPLE DALE B Ripple et al. Jan 1986
US4605417 FLEISCHAUER K E Fleischauer Aug 1986
US4759766 Humboldt-Universitaet zu Berlin Buettner-Janz et al. Jul 1988
US4759769 Health & Research Services Inc. Hedman et al. Jul 1988
US4932969 Sulzer Brothers Limited Frey et al. Jun 1990
US4997432 Waldemar Link GmbH & Co. Keller Mar 1991
US5034254 The Boeing Company Cologna et al. Jul 1991
US5236460 Midas Rex Pneumatic Tools, Inc. Barber Aug 1993
US5258031 Danek Medical Salib et al. Nov 1993
US5306308 Gross et al. Apr 1994
US5314477 J.B.S. Limited Company Marnay May 1994
US5370697 SULZER Medizinaltechnik AG Baumgartner Dec 1994
US5401269 LINK WALDEMAR GMBH CO Buttner-Janz et al. Mar 1995
US5425773 Danek Medical, Inc. Boyd et al. Jun 1995
US5458642 Beer et al. Oct 1995
US5507816 Customflex Limited Bullivant Apr 1996
US5556431 Buttner-Janz Sep 1996
US5562738 Danek Medical, Inc. Boyd et al. Oct 1996
US5674296 Spinal Dynamics Corporation Bryan et al. Oct 1997
US5676701 Smith & Nephew, Inc. Yuan et al. Oct 1997
US5676702 Tornier S.A. Ratron Oct 1997
US5683464 Sulzer Calcitek Inc. Wagner et al. Nov 1997
US5683465 Shinn et al. Nov 1997
US5755796 Ibo et al. May 1998
US5782830 SDGI Holdings, Inc. Farris Jul 1998
US5782832 Surgical Dynamics, Inc. Larsen et al. Jul 1998
US5827328 Buttermann Oct 1998
US5865846 Bryan et al. Feb 1999
US5888226 Rogozinski Mar 1999
US5893889* Harrington Apr 1999
US5895428 Berry Apr 1999
US5899941 Chubu Bearing Kabushiki Kaisha Nishijima May 1999
US5989291 Third Millennium Engineering, LLC Ralph et al. Nov 1999
US6001030 Delaney Dec 1999
US6019792 Cauthen Research Group, Inc. Cauthen Feb 2000
US6039763 Disc Replacement Technologies, Inc. Shelokov Mar 2000
US6063121 Xavier et al. May 2000
US6066174 SDGI Holdings, Inc. Farris May 2000
US6113637 Sofamor Danek Holdings, Inc. Gill et al. Sep 2000
US6136031 Surgical Dynamics, Inc. Middleton Oct 2000
US6146421 Gordon, Maya, Roberts and Thomas, Number 1, LLC Gordon et al. Nov 2000
US6156067 Spinal Dynamics Corporation Bryan et al. Dec 2000
US6159215 Depuy Acromed, Inc. Urbahns et al. Dec 2000
US6179874 Cauthen Research Group, Inc. Cauthen Jan 2001
US6228118 Gordon, Maya, Roberts and Thomas, Number 1, LLC Gordon May 2001
US6280458 Karl Storz GmbH & Co. KG Boche et al. Aug 2001
US6319257 Kinamed, Inc. Carignan et al. Nov 2001
US6368350 Sulzer Spine-Tech Inc. Erickson et al. Apr 2002
US6375682 Fleischmann et al. Apr 2002
US6416551 Waldemar Link (GmbH & Co.) Keller Jul 2002
US6428544 Third Millennium Engineering, LLC Ralph et al. Aug 2002
US6436102 Third Millennium Engineering, LLC Ralph et al. Aug 2002
US6471725 Third Millenium Engineering, LLC Ralph et al. Oct 2002
US6478796 St. Francis Medical Technologies, Inc. Zucherman et al. Nov 2002
US6478800 DePuy AcroMed, Inc. Fraser et al. Nov 2002
US6478801 Third Millennium Engineering, LLC Ralph et al. Nov 2002
US6517580 Scientx Societe a Responsabilite Limited Ramadan et al. Feb 2003
US6527804 DIMSO (Distribution Medicale du Sud-Quest) Gauchet et al. Mar 2003
US6554864 SpineCore, Inc Ralph et al. Apr 2003
US6562047 Spine Core, Inc. Ralph et al. May 2003
US6579320 Stryker Spine Gauchet et al. Jun 2003
US6582466 Stryker Spine Gauchet Jun 2003
US6582468 Spryker Spine Gauchet Jun 2003
US6592624 DePuy AcroMed, Inc. Fraser et al. Jul 2003
US6607559 Spine Care, Inc. Ralph et al. Aug 2003
US6610092 SpineFore, Inc. Ralph et al. Aug 2003
US6623525 SpineCore, Inc. Ralph et al. Sep 2003
US6645249 SpineCore, Inc. Ralph et al. Nov 2003
US6669732 DePuy AcroMed, Inc. Serhan et al. Dec 2003
US6673113 Spinecore, Inc. Ralph et al. Jan 2004
US6682562 Eurosurgical SA Viart et al. Jan 2004
US6692495 Zacouto Feb 2004
US6706068 Ferree Mar 2004
US6716245 Spine Next Pasquet et al. Apr 2004
US20010007073 St. Francis Medical Technologies, Inc. Zucherman et al. Jul 2001
US20010016773 Serhan et al. Aug 2001
US20010020170 Zucherman et al. Sep 2001
US20010039452 St. Francis Medical Technologies, Inc. Zucherman et al. Nov 2001
US20020062131 ConMed Corporation Gallo, Sr. May 2002
US20020082695 ULRICH GmbH & CO. KG Neumann Jun 2002
US20020099377 Zucherman et al. Jul 2002
US20020111679 Zucherman et al. Aug 2002
US20020111681 Ralph et al. Aug 2002
US20020111682 Ralph et al. Aug 2002
US20020111684 Ralph et al. Aug 2002
US20020111685 Ralph et al. Aug 2002
US20020128714 Manasas et al. Sep 2002
US20020161375 Ralph et al. Oct 2002
US20030014057 Ralph et al. Jan 2003
US20030014109 Ralph et al. Jan 2003
US20030014110 Ralph et al. Jan 2003
US20030014112 Ralph et al. Jan 2003
US20030014113 Ralph et al. Jan 2003
US20030014114 Ralph et al. Jan 2003
US20030014115 Ralph et al. Jan 2003
US20030014116 Ralph et al. Jan 2003
US20030023245 Ralph et al. Jan 2003
US20030023309 Ralph et al. Jan 2003
US20030023310 Ralph et al. Jan 2003
US20030028197 Hanson et al. Feb 2003
US20030028249 Stryker Spine Baccelli et al. Feb 2003
US20030028252 Ralph et al. Feb 2003
US20030040801 Ralph et al. Feb 2003
US20030055503 O'Neil Mar 2003
US20030060886 Van Hoeck et al. Mar 2003
US20030069586 Errico et al. Apr 2003
US20030069642 Ralph et al. Apr 2003
US20030074067 Errico et al. Apr 2003
US20030078666 Ralph et al. Apr 2003
US20030100951 Serhan et al. May 2003
US20030125748 Li et al. Jul 2003
US20030149438 Howmedica Osteonics Corp. Nichols et al. Aug 2003
US20030149482 Sofamor Danek Group, Inc. Michelson Aug 2003
US20030187508 Cauthen Oct 2003
US20030191534 Viart et al. Oct 2003
US20030199981 Ferree Oct 2003
US20030204260 Ferree Oct 2003
US20030208271 AxioMed Spine Corporation Kuras Nov 2003
US20030225408 Howmedica Osteonics Corp. Nichols et al. Dec 2003
US20030229358 Errico et al. Dec 2003
US20030233097 Ferree Dec 2003
US20030233148 Ferree Dec 2003
US20040002759 Ferree Jan 2004
US20040002762 Hawkins Jan 2004
US20040010316 William et al. Jan 2004
US20040024406 Ralph et al. Feb 2004
US20040024407 Ralph et al. Feb 2004
US20040030387 Landry et al. Feb 2004
US20040030389 Ferree Feb 2004
US20040030390 Ferree Feb 2004
US20040034426 Errico et al. Feb 2004
US20040078079 Foley Apr 2004

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
FR2718635AXCYL MEDICALApr 1994
WO199710776Mar 1997
WO2003084449COOL BRACEOct 2003
* cited by examiner

Patent Family

Document NumberAssigneeInventorsIssue/Pub Date
US20030074073 Michael Dudasik et al. Apr 2003
US20030074067 Michael Dudasik et al. Apr 2003
US20030074068 Michael Dudasik et al. Apr 2003
US20030074066 Michael Dudasik et al. Apr 2003
US20030074071 Michael Dudasik et al. Apr 2003
US20030074072 Michael Dudasik et al. Apr 2003
US20030074070 Michael Dudasik et al. Apr 2003
US20030074074 Michael Dudasik et al. Apr 2003
US20030074069 Michael Dudasik et al. Apr 2003
US20040034426 Michael Dudasik et al. Feb 2004