EP3013542A1 - Matériau de substitution osseuse et procédé de production de matériau de substitution osseuse - Google Patents

Matériau de substitution osseuse et procédé de production de matériau de substitution osseuse

Info

Publication number
EP3013542A1
EP3013542A1 EP14738750.0A EP14738750A EP3013542A1 EP 3013542 A1 EP3013542 A1 EP 3013542A1 EP 14738750 A EP14738750 A EP 14738750A EP 3013542 A1 EP3013542 A1 EP 3013542A1
Authority
EP
European Patent Office
Prior art keywords
ceramic
bone
porous
monolithic
load
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.)
Withdrawn
Application number
EP14738750.0A
Other languages
German (de)
English (en)
Inventor
Kathrin LORENZ
Tobias Fey
Peter Greil
Heinrich Wecker
Alfons Kelnberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ceramtec GmbH
Friedrich Alexander Univeritaet Erlangen Nuernberg FAU
Original Assignee
Ceramtec GmbH
Friedrich Alexander Univeritaet Erlangen Nuernberg FAU
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 Ceramtec GmbH, Friedrich Alexander Univeritaet Erlangen Nuernberg FAU filed Critical Ceramtec GmbH
Publication of EP3013542A1 publication Critical patent/EP3013542A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/56—Porous materials, e.g. foams or sponges
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/02—Inorganic materials
    • A61L27/10—Ceramics or glasses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/24—Producing shaped prefabricated articles from the material by injection moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/346—Manufacture of moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2002/3092—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth having an open-celled or open-pored structure
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2002/3093—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth for promoting ingrowth of bone tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2430/00—Materials or treatment for tissue regeneration
    • A61L2430/02—Materials or treatment for tissue regeneration for reconstruction of bones; weight-bearing implants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2430/00—Materials or treatment for tissue regeneration
    • A61L2430/38—Materials or treatment for tissue regeneration for reconstruction of the spine, vertebrae or intervertebral discs

Definitions

  • the invention relates to a ceramic bone substitute material and generative method for producing this bone substitute material.
  • the invention relates to ceramic bone replacement materials used in implants, and preferably in spinal implants.
  • Manufacturing processes can be used to design the structures of the bone substitute material.
  • Endoprosthetic components for example for the fusion of vertebral bodies (cages) are known. They are adapted in geometry to the anatomy of the human vertebral body, are located between two vertebral bodies and replace the intervertebral disc completely or partially. In addition to disc replacement, replacement of whole spinal segments, e.g. Vertebral body and adjacent discs with cages possible.
  • the spinal implants at a first stage of retention in the human body, by their mechanical properties alone, keep adjacent vertebral bodies at a distance, in an anatomically correct and
  • Known ceramic cages are usually designed annular or adapted to the shape and anatomy of the human vertebral body, the ring consists of a monolithic, so dense, high strength and stiff ceramic.
  • Bone replacement materials can be filled. Another possibility is the filling of this cavity with an artificial, porous, osseoinduktiven or osseoconductive core structure.
  • the artificial or synthetic core structure can be on ceramic cages on similar ceramic materials, other ceramic materials or non-ceramic Materials are based and usually much less stiff than the outer ring. In this area, bone cells are supposed to build up new bone material, whereby the cells involved need a corresponding mechanical stimulus.
  • bone replacement material is used interchangeably with these terms for the term porous core or porous core structure, which makes sense in particular with regard to the spinal implants described here.
  • Embodiments of the monolithic load bearing material may be used. However, the invention is not intended to be limited by the use of these terms
  • spinal implants be limited.
  • the spinal implants are only as a preferred embodiment or preferred field of application for the
  • the bone substitute material according to the invention can be used wherever bone is supposed to grow or grow together with an implant.
  • a porous ceramic bone replacement material according to a preferred embodiment of the invention has an open, continuous porosity of at least 25% by volume.
  • the artificial core structure can be made by a foaming process in which a gas is introduced into a ceramic slurry to generate bubbles.
  • These structures are mechanically relatively stable and resilient; the compressive strengths are in the double-digit megapascal range.
  • porous structures are not or hardly interconnecting, so that essential conditions, namely the permeability to fluids and Einwachspfade for bone cells, for new bone formation missing.
  • Another variant for targeted pore formation in ceramic structures is based on the use of pore formers, for example organic
  • Bone substance suitable This technology can therefore be used in the
  • Another disadvantage is that the structure of the porous ceramic is dictated by the structure of the template body, which does not necessarily correspond to the ideal biological conditions in the human body.
  • the structure to be achieved can only be limited by selecting a corresponding template body.
  • the object of the invention is therefore to avoid the disadvantages of said methods and to provide a stable porous bone replacement material, which can be used in particular in spinal implants. Furthermore, methods for producing this bone replacement material are to be made available.
  • high-strength and damage-tolerant ceramic materials are to be used.
  • the bone substitute materials should provide the best possible conditions for the implant bone tissue to grow through.
  • oxide ceramic materials based on Al 2 O 3, ZrO 2 or mixed ceramics thereof such as ZTA (zirconia thoughened alumina), ATZ (alumina thoughened zirconia) or ceramic composite materials with dispersoid phases.
  • ZTA zirconia thoughened alumina
  • ATZ alumina thoughened zirconia
  • ceramic composite materials with dispersoid phases such as Si3N or SiC based materials.
  • porous ceramic bone substitute material or a complete implant comprising a porous ceramic
  • the core structures according to the invention are the very flexible and complex design options.
  • the fusion structure may e.g. have a graded porosity in terms of pore frequency and / or pore size.
  • the targeted design of pore forms such. directed channel structures, which favor the vascularization of the newly formed Knochenmate than is possible.
  • a patient's natural and individual bone structure can be used as a template on the basis of computer tomography data in order to support a patient-appropriate bone structure.
  • Another advantage is a possible cross-sectional reduction of the webs with the same strength of the porous structures.
  • a higher proportion of endogenous bone cells in the core structure of the cage can be achieved.
  • Hollow webs may be advantageous, for example, to fill the hollow webs with growth-promoting or antimicrobial substances.
  • Negative forms or ceramic positive structures are produced, very high resolutions can be achieved. Realistically, resolutions in the z-direction are currently up to 30 ⁇ and in the lateral x-y direction to 20 ⁇ .
  • the structures can be made so that they can be optimally cleaned and sterilized after completion, which is extremely important in a medical device.
  • Be negative forms such as light-curing plastics
  • Suitable methods are i.a. Slip molding and injection molding, in particular low-pressure injection molding (hot casting or low pressure injection molding, LIM).
  • An implant comprising a porous ceramic bone substitute material and a monolithic load-bearing material can be readily manufactured using such a generative process. Preferably, this is also the case
  • the monolithic, load-bearing material made of ceramic, particularly preferably of a similar ceramics as the porous bone replacement material.
  • the bone substitute material and the monolithic load-bearing material may be molded together by a ceramic injection molding process.
  • the process flow may look like this:
  • a generatively produced polymer core is placed in a mold predetermining the shape of the spinal implant and overmolded with the ceramic low-pressure injection-molding compound at temperatures above 100 ° C.
  • This composition can be prepared and processed according to known prior art from the ceramic powder and waxy organic.
  • a template core (negative mold) produced, for example, by photolithography or fused deposition modeling (FDM) from support polymer specifies the pore structure.
  • FDM fused deposition modeling
  • the optionally remaining carbonaceous core can be removed by oxidation above 600 ° C.
  • a particular ceramic trabecular structure can be made together or separately with a monolithic sheath region for a spinal implant.
  • the big advantage in addition to the flexible geometry of the core structure in these cages is the shape of the cages in one operation.
  • Generative processes include a) direct processes (3D powder bed printing, direct ceramic inkjet printing) and b) indirect processes (FDM,
  • Stereolithography in particular CAD-based stereolithography
  • the resolution limits of the respective methods have been converted into pore sizes and web widths according to current knowledge and shown in the table:
  • the maximum economic upper limit for pore sizes and web widths can be assumed to be 10 mm. Large pore sizes are advantageous, for example, when channel structures are to be applied.
  • F DM deposition method An example of a suitable generative or rapid prototyping method with a high degree of flexible geometry design is the so-called F DM deposition method, in which models of negative forms are produced from thermoplastic polymer wire, which are fed to a nozzle and down to just below
  • thermoplastic material Melting temperature is heated.
  • the semi-liquid thermoplastic material is then applied as a further layer on an existing layer and cools there immediately.
  • the layers adhere to each other because the liquid plastic melts the already existing layer.
  • Possible materials are ABS (acrylonitrile-butadiene-styrene), PLA (polylactides) or PVA.
  • ABS acrylonitrile-butadiene-styrene
  • PLA polylactides
  • PVA polylactides
  • the polymer structure is removed thermally by decomposition using ABS and PLA.
  • the water-soluble PVA can be dissolved by treatment in a water bath at temperatures below 60 ° C.
  • the produced core structures can be independently of the selected
  • Particularly suitable materials for lost cores or negative molds have been found to be epoxy materials with a softening point which is above the softening point of the LIM injection molding compound, advantageously above 120 ° C.
  • the negative molds can also be infiltrated with ceramic masses containing pore formers. After the removal of the lost nucleus and the
  • Pore formers lead to an additional microporosity. With this kind of setting a bimodalen pore size distribution can the two aspects
  • a second variant is the already mentioned stereolithographic methods, in which light-curing polymers are used, which are solidified and stabilized layer by layer by exposure to UV light.
  • direct production via commercial 3D printing of ceramic powders can be used to make the trabecular structures.
  • the 3D component is optimized for the printing process ceramic powders (grain size and distribution, binder content) via a layered structure in the inkjet printing process using a
  • Binder fluid produced Powder areas that are not printed with the liquid can be removed after solidification of the component in the building chamber by blowing or manual processing.
  • the dimensioning of the component must be such that a removal of the remaining powder is possible.
  • the printable layer thickness in the z direction depends on the particle size distribution of the powder and the resolution of the device. Usually, the layer thickness between 125 and 150 ⁇ .
  • the xy resolution corresponds to the resolution of the layer thickness, since it is also dependent on the particle size distribution.
  • the ceramic direct printing can be used by means of a standard inkjet technology. Here, an optimized ceramic slurry (average particle size ⁇ 100 nm) is printed layer by layer directly onto a substrate.
  • the advantage here is that the direct construction of ceramic structures is possible.
  • a major advantage of the first approach is that a cage with a trabecular structure can be produced in one operation and no additional effort for material or positive connection with the dense shell structure of the cage must be operated.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Mechanical Engineering (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Neurology (AREA)
  • Dermatology (AREA)
  • Medicinal Chemistry (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Prostheses (AREA)

Abstract

L'invention concerne un matériau de substitution osseuse en céramique ainsi qu'un procédé de production de ce dernier. L'invention concerne notamment le procédé de régénération destiné à la production de matériaux de substitution osseuse.
EP14738750.0A 2013-06-27 2014-06-25 Matériau de substitution osseuse et procédé de production de matériau de substitution osseuse Withdrawn EP3013542A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013212455 2013-06-27
PCT/EP2014/063428 WO2014207056A1 (fr) 2013-06-27 2014-06-25 Matériau de substitution osseuse et procédé de production de matériau de substitution osseuse

Publications (1)

Publication Number Publication Date
EP3013542A1 true EP3013542A1 (fr) 2016-05-04

Family

ID=51177030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14738750.0A Withdrawn EP3013542A1 (fr) 2013-06-27 2014-06-25 Matériau de substitution osseuse et procédé de production de matériau de substitution osseuse

Country Status (5)

Country Link
US (1) US20160151161A1 (fr)
EP (1) EP3013542A1 (fr)
CA (1) CA2916586A1 (fr)
DE (1) DE102014212234A1 (fr)
WO (1) WO2014207056A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016096939A1 (fr) * 2014-12-16 2016-06-23 Ceramtec Gmbh Cages vertébrales et instruments d'insertion desdites cages vertébrales
JP6573510B2 (ja) * 2015-09-11 2019-09-11 日本碍子株式会社 多孔質体の製造方法及び製造装置
CN112842636B (zh) 2015-12-16 2024-09-20 纽文思公司 多孔脊柱融合植入物
CN114807788B (zh) * 2022-04-13 2023-07-07 苏州诚亮粉末冶金有限公司 一种zta陶瓷网膜改性纳米粉末冶金材料及其制备方法
CN115385721B (zh) * 2022-08-29 2023-08-08 广东工业大学 基于光固化成型的可控孔结构多孔仿生人骨及其制备方法

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US6341952B2 (en) * 1997-03-20 2002-01-29 Therics, Inc. Fabrication of tissue products with additives by casting or molding using a mold formed by solid free-form methods
EP1492475B1 (fr) * 2001-04-16 2011-12-21 Wright Medical Technology, Inc. Structures denses/poreuses utilisees comme substituts osseux
EP1429817B8 (fr) * 2001-09-24 2007-09-12 Millenium Biologix Technologies Inc. Greffons osseux constitues d'un composite ceramique poreux
US20040254668A1 (en) * 2003-06-16 2004-12-16 Jang Bor Z. Macro-porous hydroxyapatite scaffold compositions and freeform fabrication method thereof
WO2008095307A1 (fr) * 2007-02-07 2008-08-14 Mcgill University Implants biocéramiques présentant une substance bioactive
ITMI20110094A1 (it) * 2011-01-27 2012-07-28 Ghimas Spa Procedimento di realizzazione di sostituti e/o riempitivi ossei realizzati su misura in materiali bioattivi e biomimetici.
CA2913845A1 (fr) * 2013-05-23 2014-11-27 Ceramtec Gmbh Element de construction en ceramique comprenant des canaux de pores

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2014207056A1 *

Also Published As

Publication number Publication date
US20160151161A1 (en) 2016-06-02
CA2916586A1 (fr) 2014-12-31
DE102014212234A1 (de) 2014-12-31
WO2014207056A1 (fr) 2014-12-31

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