Búsqueda Imágenes Maps Play YouTube Noticias Gmail Drive Más »
Iniciar sesión
Usuarios de lectores de pantalla: deben hacer clic en este enlace para utilizar el modo de accesibilidad. Este modo tiene las mismas funciones esenciales pero funciona mejor con el lector.

Patentes

  1. Búsqueda avanzada de patentes
Número de publicaciónWO2011008733 A3
Tipo de publicaciónSolicitud
Número de solicitudPCT/US2010/041790
Fecha de publicación7 Jul 2011
Fecha de presentación13 Jul 2010
Fecha de prioridad14 Jul 2009
También publicado comoCA2767822A1, EP2453937A2, WO2011008733A2
Número de publicaciónPCT/2010/41790, PCT/US/10/041790, PCT/US/10/41790, PCT/US/2010/041790, PCT/US/2010/41790, PCT/US10/041790, PCT/US10/41790, PCT/US10041790, PCT/US1041790, PCT/US2010/041790, PCT/US2010/41790, PCT/US2010041790, PCT/US201041790, WO 2011/008733 A3, WO 2011008733 A3, WO 2011008733A3, WO-A3-2011008733, WO2011/008733A3, WO2011008733 A3, WO2011008733A3
InventoresM.D. Richard J. Deslauriers, Joseph Jannetty, Eric Kolb, John A. Tomich, Naresh Akkarapaka
SolicitanteDoctors Research Group, Inc.
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos:  Patentscope, Espacenet
Multi-density polymeric interbody spacer and method for fabrication thereof
WO 2011008733 A3
Resumen
A multi-density polymeric interbody spacer formed from biocompatible material for osteoconductivity includes multiple density regions of different porosity to provide both strength and osteoconductivity. An interface region is formed between the density regions to provide both direct adhesion and mechanical interlocking between the different density regions to increase the strength of the multi-density polymeric interbody spacer. A method for forming the multi-density polymeric interbody spacer includes curing a first density region to achieve a first target porosity. A second density region may then be molded to the first density region to achieve a second target porosity. A portion of the second density region partially flows into pores of the first density region, providing direct adhesion and mechanical interlocking between the first and second density regions.
Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US5607474 *20 Sep 19934 Mar 1997Board Of Regents, University Of Texas SystemMulti-phase bioerodible implant/carrier and method of manufacturing and using same
US5702449 *7 Jun 199530 Dic 1997Danek Medical, Inc.Reinforced porous spinal implants
US6149688 *29 Sep 199721 Nov 2000Surgical Dynamics, Inc.Artificial bone graft implant
US6482234 *26 Abr 200019 Nov 2002Pearl Technology Holdings, LlcProsthetic spinal disc
US20030004578 *28 Jun 20012 Ene 2003Ethicon, Inc.Composite scaffold with post anchor for the repair and regeneration of tissue
US20040249462 *5 Jun 20049 Dic 2004Shih-Shing HuangArtificial intervertebral disc flexibly oriented by spring-reinforced bellows
US20050228498 *18 Nov 200413 Oct 2005Todd AndresOsteoconductive integrated spinal cage and method of making same
US20090043398 *9 Ago 200712 Feb 2009Zimmer, Inc.Method of producing gradient articles by centrifugation molding or casting
Clasificaciones
Clasificación internacionalA61L27/54, A61L27/14, B29C39/18, A61F2/28, A61L27/56
Clasificación cooperativaB29C39/025, A61L31/146, B29C39/006, B29L2031/7532, A61L31/129, B29C39/10
Clasificación europeaA61L31/14H, B29C39/00B2, B29C39/02B3, B29C39/10, A61L31/12D10
Eventos legales
FechaCódigoEventoDescripción
9 Mar 2011121Ep: the epo has been informed by wipo that ep was designated in this application
Ref document number: 10800407
Country of ref document: EP
Kind code of ref document: A2
11 Ene 2012WWEWipo information: entry into national phase
Ref document number: 2767822
Country of ref document: CA
11 Ene 2012ENPEntry into the national phase in:
Ref document number: 2767822
Country of ref document: CA
13 Ene 2012WWEWipo information: entry into national phase
Ref document number: 2010273530
Country of ref document: AU
16 Ene 2012NENPNon-entry into the national phase in:
Ref country code: DE
9 Feb 2012ENPEntry into the national phase in:
Ref document number: 2010273530
Country of ref document: AU
Date of ref document: 20100713
Kind code of ref document: A