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 »

US6533817: Packaged, partially hydrated prosthetic disc nucleus

Share

Filing Information

Inventor(s) Britt K. Norton · Tara N. Sherman · Laura J. Bauer ·
Assignee(s) Raymedica, Inc. ·
Attorney/Agent(s) Dicke, Billig & Czaja, P.A. ·
Primary Examiner Corrine McDermott ·
Assistant Examiner Umi Chattopadhyay ·
Application Number US9587159
Filing date 06/05/2000
Issue date 03/18/2003
Predicted expiration date 06/05/2020
U.S. Classifications 623/171.6  · 623/171.1  · 623/171.2  ·
International Classifications --
Kind CodeB1
International Classifications 206438 · D 9314 · D 9424 · D 9499 · 28289 · 28299 · 623 1611 · 623 1111 · 623 1711 · 623 1716 · 623 1712 · 606 61 ·
29 Claims, 8 Drawings


Abstract

A packaged prosthetic disc nucleus including a prosthetic disc nucleus and a retainer. The prosthetic disc nucleus includes a hydrogel core formed to hydrate from a dehydrated state. Further, the prosthetic disc nucleus is configured to such that following implantation into a nucleus cavity, the hydrogel core hydrates to a final hydrated state. The retainer selectively contains the prosthetic disc nucleus. Further, upon contact with a hydration liquid, the retainer is configured to allow the hydrogel core to hydrate from the dehydrated state while preventing the hydrogel core from hydrating to the final hydrated state. Thus, the prosthetic disc nucleus is constrained by the retainer in a partially hydrated state. In one preferred embodiment, the combination prosthetic disc nucleus/retainer is sealed within an outer enclosure, such as a pouch, that also contains a hydration liquid for hydrating the hydrogel core. During use, the prosthetic disc nucleus is removed from the retainer and implanted in the partially hydrated state.

Independent Claims | See all claims (29)

  1. 1. A packaged prosthetic disc nucleus apparatus comprising: a prosthetic disc nucleus for implantation within a nucleus cavity defined by an anulus and opposing end plates, the prosthetic disc nucleus including: a hydrogel core configured to hydrate from a dehydrated state, wherein the prosthetic disc nucleus is configured such that following implantation, the hydrogel core hydrates to a final hydrated state; and a retainer selectively containing the prosthetic disc nucleus, the retainer configured to allow the hydrogel core, upon contact with a hydration liquid, to hydrate from the dehydrated state and prevent the hydrogel core from hydrating to the final hydrated state, such that the prosthetic disc nucleus is constrained by the retainer in a partially-hydrated state, and wherein the retainer is configured to release the prosthetic disc nucleus for subsequent implantation of the prosthetic disc nucleus into the nuceus cavity.
  2. 15. A packaged prosthetic disc nucleus apparatus comprising: a prosthetic disc nucleus for implantation within a nucleus cavity defined by an anulus and opposing end plates, the prosthetic disc nucleus including: a hydrogel core configured to hydrate and expand from a dehydrated height, wherein the prosthetic disc nucleus is configured such that following implantation, the hydrogel core expands to a final hydration height; and a retainer selectively containing the prosthetic disc nucleus, the retainer configured to constrain the hydrogel core, upon contact with a hydration liquid, to a partial hydration height, the partial hydration height being less than the final hydration height, and wherein the retainer is configured to release the prosthetic disc nucleus for subsequent implantation of the prosthetic disc nucleus into the nucleus cavity.
  3. 24. A method of packaging a prosthetic disc nucleus including a hydrogel core configured to hydrate from a dehydrated level to a final hydration level, the method comprising: dehydrating the hydrogel core; providing a retainer forming a cavity sized to selectively contain the prosthetic disc nucleus, wherein the retainer is configured to release the prosthetic disc nucleus for subsequent implantation of the prosthetic disc nucleus into the nucleus cavity; placing the dehydrated prosthetic disc nucleus within the retainer; exposing the prosthetic disc nucleus to a hydration liquid such that the hydrogel core hydrates; and constraining hydration of the hydrogel core with the retainer to a partial hydration level that is less than the final hydration level.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US3867728 CUTTER LAB Stubstad et al. Feb 1975
US3875595 Froning Apr 1975
US3883902 Lynch May 1975
US4772287 CeDaR Surgical, Inc. Ray et al. Sep 1988
US4863477 MONSON GARY L Monson Sep 1989
US4904260 Cedar Surgical, Inc. Ray et al. Feb 1990
US4932969 Sulzer Brothers Limited Frey et al. Jun 1990
US5047055 Pfizer Hospital Products Group, Inc. Bao et al. Sep 1991
US5171280 Sulzer Brothers Limited Baumgartner Dec 1992
US5192326 Pfizer Hospital Products Group, Inc. Bao et al. Mar 1993
US5458643 Kyocera Corporation Oka et al. Oct 1995
US5534028 Howmedica, Inc. Bao et al. Jul 1996
US5562736 RayMedica, Inc. Ray et al. Oct 1996
US5645597 Krapiva Jul 1997
US5649945 RayMedica, Inc. Ray et al. Jul 1997
US5665111 RayMedica, Inc. Ray et al. Sep 1997
US5674295 RayMedica, Inc. Ray et al. Oct 1997
US5705780 Howmedica Inc. Bao Jan 1998
US5800549 Howmedica Inc. Bao et al. Sep 1998
US5824093 RayMedica, Inc. Ray et al. Oct 1998
US5865845 Thalgott Feb 1999
US5888220 Advanced Bio Surfaces, Inc. Felt et al. Mar 1999
US5919235 Sulzer Orthopaedie AG Husson et al. Jul 1999
US5961554 Janson et al. Oct 1999
US5976186 Stryker Technologies Corporation Bao et al. Nov 1999
US6022376 RayMedica, Inc. Assell et al. Feb 2000
US6066325 Fusion Medical Technologies, Inc. Wallace et al. May 2000
US6113639* Raymedica, Inc. Ray et al. Sep 2000
US6132465 Raymedica, Inc. Ray et al. Oct 2000

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
DE3922203Oct 1990
EP0700671Stryker Technologies CorporationMar 1996
FR2639823GARCIA ALAINJun 1990
WO199611642Apr 1996
WO199962439Dec 1999
WO200064385LI MEDICAL TECHNOLOGIES, INC.Nov 2000
* cited by examiner

Other Publications

D. Charles D. Ray; “The Artificial Disc—Introduction, History, and Socioeconomics”; ©1992, pp. 205-225.
A copy of PCT International Search Report for International Application No. PCT/US01/17468, mailed on Jan. 3, 2002 (8 pages).

Referenced By

Document NumberAssigneeInventorsIssue/Pub Date
NL1023926 UNIV EINDHOVEN TECH HUYGHE JACQUES MARIE RENE JAN et al. Jan 2005
US7632312 Neurocare International, Inc. Toussaint Leclercq Dec 2009
US7052515 SIMONSON RUSH E Rush E. Simonson May 2006
US7585326 SpinalMotion, Inc. Malan de Villiers et al. Sep 2009
US7601174 Warsaw Orthopedic, Inc. Aaron Kelly et al. Oct 2009
US7485134 Rush E. Simonson Feb 2009
US7008452 Depuy Acromed, Inc. John R. Hawkins Mar 2006
US7632294 Promethean Surgical Devices, LLC Michael T Milbodker et al. Dec 2009
US7429270 Synthes (U.S.A.) Daniel Baumgartner et al. Sep 2008
US7465318 Soteira, Inc. Andrew R. Sennett et al. Dec 2008
US6743255 Bret Ferree Jun 2004
US7204897 Replication Medical, Inc. Vladimir A. Stoy et al. Apr 2007
US7537612 Warsaw Orthopedic, Inc. Alex Kunzler May 2009
US7615076 Anulex Technologies, Inc. Joseph C. Cauthen, III et al. Nov 2009
US7597712 Organogenesis, Inc. Nancy L. Parenteau et al. Oct 2009
US7189235 Anulex Technologies, Inc. Joseph C. Cauthen Mar 2007
US7879101 Spinevision Dominique Petit et al. Feb 2011
US7909879 Anulex Technologies, Inc. Joseph C. Cauthen Mar 2011
US7909869 Flexuspine, Inc. Charles R. Gordon et al. Mar 2011
US7909873 Soteira, Inc. Francisca Tan-Malecki et al. Mar 2011
US7641692 Warsaw Orthopedic, Inc. Vincent Bryan et al. Jan 2010
US7670379 Anulex Technologies, Inc. Joseph C. Cauthen Mar 2010
US7708778 Flexuspine, Inc. Charles R. Gordon et al. May 2010
US7731754 SpinalMotion, Inc. Malan H. de Villiers et al. Jun 2010
US7731988 Zimmer, Inc. Brian Thomas et al. Jun 2010
US7749273 Anulex Technologies, Inc. Joseph C. Cauthen, III et al. Jul 2010
US7749230 Crosstrees Medical, Inc. Philip S. Yuan et al. Jul 2010
US7753958 Charles R. Gordon et al. Jul 2010
US7780731 Spine Solutions, Inc. Theirry Marnay et al. Aug 2010
US7785351 Flexuspine, Inc. Charles R. Gordon et al. Aug 2010
US7794480 Flexuspine, Inc. Charles R. Gordon et al. Sep 2010
US7799082 Flexuspine, Inc. Charles R. Gordon et al. Sep 2010
US7806934 Replication Medical Inc. Gerald Gontarz et al. Oct 2010
US7828850 Anulex Technologies, Inc. Joseph C. Cauthen, III et al. Nov 2010
US7922768 Anulex Technologies, Inc. Joseph C. Cauthen, III et al. Apr 2011
US7935147 Anulex Technologies, Inc. Lawrence W. Wales May 2011
US7951201 Anulex Technologies, Inc. Joseph C. Cauthen et al. May 2011
US7947784 Zimmer, Inc. Brian H. Thomas et al. May 2011
US7959677 Flexuspine, Inc. Michael E. Landry et al. Jun 2011
US7963992 Anulex Technologies, Inc. Joseph C. Cauthen, III et al. Jun 2011
US7988735 Matthew Yurek et al. Aug 2011
US7985257 Anulex Technologies, Inc. Joseph C. Cauthen, III et al. Jul 2011
US7985781 Zimmer GmbH Orhun K. Muratoglu et al. Jul 2011
US8012211 Spineology, Inc. Stephen D. Kuslich Sep 2011
US8007500 Crosstrees Medical, Inc. Kwan Ku Lin et al. Aug 2011
US8002834 SpinalMotion, Inc. Malan de Villiers et al. Aug 2011
US7993343 Crosstrees Medical, Inc. Kwan Ku Lin et al. Aug 2011
US7993345 Crosstress Medical, Inc. Philip S. Yuan et al. Aug 2011
US7993405 Anulex Technologies, Inc. Joseph C. Cauthen, III et al. Aug 2011
US8021424 Aesculap AG Jens Beger et al. Sep 2011
US8017107 Zimmer, Inc. Brian Thomas et al. Sep 2011
US8017139 Zimmer Technology, Inc. Brian Thomas et al. Sep 2011
US8048160 Anulex Technologies, Inc. Joseph C. Cauthen Nov 2011
US8034112 Anulex Technologies, Inc. Joseph C. Cauthen, III et al. Oct 2011
US8034362 Zimmer, Inc. Brian H. Thomas et al. Oct 2011
US8062739 Zimmer, Inc. Kaifeng Liu et al. Nov 2011
US8062371 SpinalMotion, Inc. Malan de Villiers et al. Nov 2011
US8052723 Flexuspine Inc. Charles R. Gordon et al. Nov 2011
US8090428 SpinalMotion, Inc. Malan de Villiers et al. Jan 2012
US8088165 Anulex Technologies, Inc. Joseph C. Cauthen, III et al. Jan 2012
US8092542 Warsaw Orthopedic, Inc. Vincent Bryan et al. Jan 2012
US8092538 SpinalMotion, Inc. Malan de Villiers et al. Jan 2012
US8110242 Zimmer, Inc. Michael E. Hawkins et al. Feb 2012
US8100973 Soteira, Inc. Andrew R. Sennett et al. Jan 2012
US8083797 SpinalMotion, Inc. Malan de Villiers et al. Dec 2011
US8128698 Anulex Technologies, Inc. Ishmael Bentley et al. Mar 2012
US8123810 Charles R. Gordon et al. Feb 2012
US8118869 Flexuspine, Inc. Charles R. Gordon et al. Feb 2012
US8118871 Flexuspine, Inc. Charles R. Gordon et al. Feb 2012
US8133279 Warsaw Orthopedic, Inc. Hai H. Trieu Mar 2012
US8236342 Zimmer, Inc. Brian Thomas et al. Aug 2012
US8163022 Anulex Technologies, Inc. Ishmael Bentley et al. Apr 2012
US8206447 SpinalMotion, Inc. Malan de Villiers et al. Jun 2012
US8206449 SpinalMotion, Inc. Neville Jansen et al. Jun 2012
US8187330 Flexuspine, Inc. Jonathan A. Gimbel et al. May 2012
US8157863 Warsaw Orthopedic, Inc. Hai H. Trieu Apr 2012
US8157844 Flexuspine, Inc. Jonathan A. Gimbel et al. Apr 2012
US8162994 Flexuspine, Inc. Jonathan A. Gimbel et al. Apr 2012
US8147550 Flexuspine, Inc. Charles R. Gordon et al. Apr 2012
US8262732 SpinalMotion, Inc. Malan de Villiers et al. Sep 2012
US8262730 Zimmer, Inc. Brian Thomas et al. Sep 2012
US8257440 Charles R. Gordon et al. Sep 2012
US8273124 DePuy Spine, Inc. Naren Renganath et al. Sep 2012
US8142506 Technische Universiteit Eindhoven Jacques Marie Ren Jan Huyghe et al. Mar 2012
US8267965 Flexuspine, Inc. Jonathan A. Gimbel et al. Sep 2012
US8398712 --
US8535380 --
US8353964 --
US8524268 --
US8523912 --
US8382838 --
US8372148 --
US8377098 --
US8460319 --
US8454698 --
US8454697 --
US8444695 --
US8497121 --
US8556977 --
US8480757 --

Patent Family

Document NumberAssigneeInventorsIssue/Pub Date
AU6519301 RAYMEDIA INC NORTON BRITT et al. Dec 2001
US6533817 Raymedica, Inc. Britt K. Norton et al. Mar 2003
EP1304983 RayMedica, Inc. Britt NORTON et al. Sep 2006
DE60123432 RAYMEDICA INC NORTON BRITT et al. Nov 2006
ES2272480 RAYMEDICA INC NORTON BRITT et al. May 2007