Aspects of the present disclosure relate generally to preparing models of three-dimensional structures. In particular, a model of a three-dimensional structure constructed of porous geometries is prepared. A component file including a porous CAD volume having a predefined portion of a boundary. A sp
Aspects of the present disclosure relate generally to preparing models of three-dimensional structures. In particular, a model of a three-dimensional structure constructed of porous geometries is prepared. A component file including a porous CAD volume having a predefined portion of a boundary. A space including the porous CAD volume is populated with unit cells overlapping the predefined portion of the boundary. The unit cells are populated with porous geometries having a plurality of struts having nodes on each end. At least a first strut overlaps the predefined portion of the boundary and has a length, a first node outside the porous CAD volume, and a second node inside the porous CAD volume. All struts entirely outside the porous CAD volume are removed. After removal of the struts entirely outside the porous CAD volume, each of the remaining struts is connected to a node at each end thereof.
대표청구항▼
1. A method of preparing a computer-generated model of a three-dimensional structure constructed of porous geometries, the method comprising: preparing a computer-generated component file including a porous computer-aided design volume having a boundary having at least one predefined portion; popula
1. A method of preparing a computer-generated model of a three-dimensional structure constructed of porous geometries, the method comprising: preparing a computer-generated component file including a porous computer-aided design volume having a boundary having at least one predefined portion; populating, by a processor, a space including the porous computer-aided design volume with unit cells overlapping the at least one predefined portion of the boundary; populating, by a processor, the unit cells with porous geometries, the porous geometries having a plurality of struts having opposing ends, each end being connected at a node, the plurality of struts including at least a first strut overlapping the predefined portion of the boundary, the first strut further having a length, a first node outside the porous computer-aided design volume, and a second node inside the porous computer-aided design volume; and removing all struts entirely outside the porous computer-aided design volume, such that each end of the remaining struts remains connected at the node. 2. The method of claim 1, wherein a plurality of struts overlap the predefined portion of the boundary, each of the plurality of struts having a length, a first node outside the predefined portion of the boundary, and a second node inside the predefined portion of the boundary, the method further comprising retaining the full length of the plurality of struts overlapping the predefined portion of the boundary to the first node of each of the plurality of struts. 3. The method of claim 1, wherein the first strut is removed when the first node is further from the boundary than the second node. 4. The method of claim 3, the second node being further attached to at least one adjacent strut inside the porous computer-aided design volume further comprising: moving a closer of the first and the second nodes to the predefined portion of the boundary at a position along the predefined portion of the boundary; and when the first node is the closer node, changing the length of at least the first strut such that the first strut remains connected to the first node, and when the second node is the closer node, changing the length of the at least one adjacent strut such that the at least one adjacent strut remains connected to the second node. 5. The method of claim 4, wherein the closer of the first and the second nodes to the predefined portion of the boundary is moved to a location on the predefined portion of the boundary nearest to the previous location of the moved node. 6. The method of claim 3, further comprising: replacing a closer of the first and the second nodes to the predefined portion of the boundary with a replacement node at a position along the predefined portion of the boundary; and replacing the first strut with a replacement strut having the replacement node at one end and the remaining node of the first and second nodes at the other end thereof. 7. The method of claim 1, wherein a plurality of struts overlap the predefined portion of the boundary, each of the plurality of struts having a length, a first node outside the predefined portion of the boundary, and a second node inside the predefined portion of the boundary, the method further comprising moving at least one of the first and the second nodes of at least one of the plurality of struts overlapping the predefined portion of the boundary- to a position to satisfy a predetermined surface roughness along the predefined portion of the boundary. 8. The method of claim 7, wherein at least one of the first and the second nodes of at least two of the plurality of struts overlapping the predefined portion of the boundary are moved to positions selected at random along the predefined portion of the boundary. 9. A method of preparing a computer-generated model of a three-dimensional structure constructed of porous geometries, the method comprising: preparing a computer-generated component file including a porous computer-aided design volume having a boundary having at least one predefined portion; populating, by a processor, a space including the porous computer-aided design volume with unit cells on or overlapping the at least one predefined portion of the boundary; populating, by a processor, the unit cells with porous geometries, the porous geometries having a plurality of struts having opposing ends, each end being connected at a node at the plurality of struts including at least a first strut intersecting the predefined portion of the boundary, the first strut further having a length and a first node at a first location either (i) on the predefined outer boundary or (ii) outside the porous computer-aided design volume; removing only all struts entirely outside the porous computer-aided design volume such that each end of the remaining struts remains connected at the node; and moving the first node from the first location to a second location. 10. The method of claim 9, wherein the three-dimensional structure is adapted to be placed into a separate structure, the method further comprising moving the first node in a direction not parallel to the first strut to create a resistance to movement of the three-dimensional structure when the three-dimensional structure is placed into the separate structure. 11. The method of claim 9, wherein the three-dimensional structure is adapted to be placed into a separate structure, and wherein a plurality of struts intersect the predefined portion of the boundary, each of the plurality of struts having a length and a first node at a first location either (i) on the predefined outer boundary or (ii) outside the porous computer-aided design volume, the method further comprising: moving the first node of the first strut in a first direction not parallel to the first strut; and moving the first node of at least a second strut of the plurality of struts in a second direction not parallel to the second strut and not in the same direction as the movement of the first node of the first strut to create a resistance to movement of the three-dimensional structure when the three-dimensional structure is placed into the separate structure. 12. The method of claim 9, further comprising forming a strut extending from the first node to: at least one of (i) produce a rougher surface of the three-dimensional structure and (ii) produce interlocking features to enable assembly or engagement with at least one additional three-dimensional porous structure. 13. The method of claim 9, wherein a plurality of struts intersect the predefined portion of the boundary, each of the plurality of struts having a length and a node at a first location either (i) on the predefined outer boundary or (ii) outside the porous computer-aided design volume, the method further comprising: moving the first node of the first strut and at least a second node of the-a second strut in a direction away from the predefined portion of the boundary and either (i) outside the porous computer-aided design volume or (ii) inside the porous computer-aided design volume. 14. The method of claim 13, wherein the first node and the second node form at least portions of an identifying marker visible to the unaided eye. 15. The method of claim 13, wherein the first node and the second node form at least portions of an identifying marker invisible to the unaided eye. 16. A method of producing a three-dimensional structure comprising: preparing a computer-generated model of a three-dimensional structure according to claim 1; depositing a metal powder onto a substrate; scanning a beam to form a first layer of the three-dimensional structure, the three-dimensional structure having a geometric lattice structure constructed of formed porous geometries, the formed porous geometries formed by a plurality of formed struts, each of the plurality of formed struts having a formed node on each end thereof, and an outer surface with at least a predefined portion, wherein a portion of the formed nodes lies on the predefined portion of the outer surface. 17. The method of producing a three-dimensional structure according to claim 16, wherein the beam is either (i) an electron beam or (ii) a laser beam. 18. A tangible computer-readable storage medium on which computer readable instructions of a program are stored, the instructions, when executed by a processor, cause the processor to perform a method of preparing a computer-generated model of a three-dimensional structure constructed of porous geometries, the method comprising: preparing a computer-generated component file including a porous computer-aided design volume having a boundary having at least one predefined portion; populating a space including the porous computer-aided design n volume with unit cells overlapping the at least one predefined portion of the boundary; populating the unit cells with porous geometries, the porous geometries having a plurality of struts having opposing ends, each end being connected at a node, each of the plurality of struts including at least a first strut overlapping the predefined portion of the boundary, the first strut further having a length, a first node outside the porous computer-aided design volume, and a second node inside the porous computer-aided design volume; and removing all struts entirely outside the porous computer-aided design volume such that each end of the remaining struts remains connected at the node. 19. The method of claim 1, wherein during the removal of all struts entirely outside the porous computer-aided design volume, only struts entirely outside the porous computer-aided design volume are removed. 20. The method of claim 9, wherein the second location is on the predefined outer boundary.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (188)
Swarts Dale F. ; Rohr ; Jr. William L. ; Lin Steve T. ; Devanathan Thirumalai ; Krebs Steven L. ; Schoenle Paul D., Acetabular cup.
LaSalle David L. (Woonsocket RI) Flynn Timothy M. (Norton MA) Caldarise Salvatore (Hanson MA) Manginelli Richard P. (Milton MA), Bone prostheses with direct cast macrotextured surface regions and method for manufacturing the same.
Garg Rajeev ; Prud'Homme Robert K. ; Aksay Ilhan A. ; Janas Victor F. ; TenHuisen Kevor S. ; Huxel Shawn T., Controlled architecture ceramic composites by stereolithography.
Eugenia Ribeiro de Sousa Fidalgo Leitao GB; Joost Dick De Bruijn NL; Hai-Bo Wen NL; Klaas De Groot NL, Device for incorporation and release of biologically active agents.
David M. Keicher ; Clinton L. Atwood ; Donald L. Greene ; Michelle L. Griffith ; Lane D. Harwell ; Francisco P. Jeantette ; Joseph A. Romero ; Lee P. Schanwald ; David T. Schmale, Energy-beam-driven rapid fabrication system.
Gaylo Christopher M. ; Flamenbaum Walter ; Flamenbaum Miles J., Fabrication of tissue products with additives by casting or molding using a mold formed by solid free-form methods.
Mayer, Jorg; Aeschlimann, Marcel; Torriani, Laurent, Implant to be implanted in bone tissue or in bone tissue supplemented with bone substitute material.
Freitag Douglas W. (Brookeville MD) Beaman Joseph J. (Austin TX) Bourell David L. (Austin TX), Laser-directed fabrication of full-density metal articles using hot isostatic processing.
Ogle Matthew F. ; Holmberg William R. ; Schroeder Richard F. ; Guzik Donald S. ; Mirsch ; II M. William ; Bergman Darrin J. ; Finucane Hallie A. ; Tweden Katherine S., Medical article with adhered antimicrobial metal.
Buchman, Alisa; Payne, Raymond G.; Mendes, David G.; Sibony, Simha; Bryant, Robert G., Medical implants made of wear-resistant, high-performance polyimides, process of making same and medical use of same.
Lawrence Evans Brown ; Timothy Paul Fuesting ; Joseph Jefferson Beaman, Jr. ; Suman Das, Method and apparatus for making components by direct laser processing.
Deckard Carl R. (1801 Pin Oak La. Round Rock TX 78681) Beaman Joseph J. (700 Texas Ave. Austin TX 78705) Darrah James F. (4906 Manchaca Austin TX 78745), Method for selective laser sintering with layerwise cross-scanning.
Shetty H. Ravindranath (Warsaw IN) Heldreth Mark A. (Mentone IN) Parr Jack E. (North Webster IN), Method of bonding titanium to a cobalt-based alloy substrate in an orthophedic implant device.
Ducheyne Paul (Bryn Mawr PA) Cuckler John (Haverford PA) Radin Shulamit (Cherry Hill NJ), Method of depositing calcium phosphate cermamics for bone tissue calcification enhancement.
Devanathan Deva ; Krebs Steve ; Lin Steve T. ; Panchison Clarence M. ; Morr James J., Method of making an orthopaedic implant having a porous metal pad.
Panchison Clarence M. ; Hawley Michael S. ; Shetty Ravindranath H. ; Compton Richard C., Method of making an orthopaedic implant having a porous metal pad.
deAngelis Alfredo O. (241 Freeman St. #1 Brookline MA 02146), Method of three-dimensional rapid prototyping through controlled layerwise deposition/extraction and apparatus therefor.
Bourell David L. (Austin TX) Marcus Harris L. (Austin TX) Barlow Joel W. (Austin TX) Beaman Joseph J. (Austin TX) Deckard Carl R. (Austin TX), Multiple material systems for selective beam sintering.
Bourell David L. (Austin TX) Marcus Harris L. (Austin TX) Barlow Joel W. (Austin TX) Beaman Joseph J. (Austin TX) Deckard Carl R. (Austin TX), Multiple material systems for selective beam sintering.
Devanathan Deva (Warsaw IN) Krebs Steve (Fort Wayne IN) Lin Steve T. (Fort Wayne IN) Panchison Clarence M. (Warsaw IN) Morr James J. (Leesburg IN), Orthopaedic implant and method of making same.
Bigliani Louis U. ; Flatow Evan L. ; Norman Delfreda L., Orthopaedic implant having an articulating surface with a conforming and translational surface.
Shimamune Takayuki (Tokyo JPX) Sato Hideo (Chiba JPX) Hosonuma Masashi (Kanagawa JPX), Process for providing titanium composite having a porous surface.
Pratt Clyde R. (Somis CA) Carignan Roger G. (Camarillo CA) Raggio Charles M. (Camarillo CA) Woznick Chuck P. (Oxnard CA), Prosthesis device fabrication.
Buechel Frederick F. (61 First St. South Orange NJ 07079) Pappas Michael J. (61 Gould Pl. Caldwell NJ 07006), Prosthesis with biologically inert wear resistant surface.
Spector Myron (Charleston SC) Kwiatkowski George T. (Greenbrook NJ) Smarock Walter H. (Somerville NJ) Michno ; Jr. Michael J. (Somerville NJ), Prosthetic devices having coatings of selected porous bioengineering thermoplastics.
Pope Bill J. ; Taylor Jeffrey K. ; Dixon Richard H. ; Gardinier Clayton F. ; Pope Louis M. ; Blackburn Dean C. ; Vail Michael A. ; Jensen Kenneth M., Prosthetic hip joint having sintered polycrystalline diamond compact articulation surfaces.
Coggan William G. (Rochester MI) Culpepper ; Jr. Bertram C. (Trenton MI) Pozzo James A. (Troy MI) Sommer Michael J. (Rochester MI) Wilson Richard C. (W. Bloomfield MI), Siding panels.
Bates, Brian L.; Fearnot, Neal E.; Kozma, Thomas G.; Osborne, Thomas A.; Ragheb, Anthony O.; Roberts, Joseph W.; Voorhees, III, William D., Silver implantable medical device.
Dickens ; Jr. Elmer Douglas (Richfield OH) Lee Biing Lin (Broadview Heights OH) Taylor Glenn Alfred (Houston TX) Magistro Angelo Joseph (Brecksville OH) Ng Hendra (E. Cleveland OH) McAlea Kevin P. (A, Sinterable semi-crystalline powder and near-fully dense article formed therein.
Sang-Hun Kang ; Robert L. Wittenberg, System and method for reducing wireless telecommunications network resources required to successfully route calls to a wireline network.
Beaman Joseph J. (Austin TX) McGrath Joseph C. (Calistoga CA) Prioleau Frost R. R. (Piedmont CA), Thermal control of selective laser sintering via control of the laser scan.
Pomerantz Itzchak (18 Golomb Street Kefar Sava ILX) Gilad Shalev (22a Anshei Bereshit Street Hod Hasharon ILX) Dollberg Yehoshua (10 Shtruck Street Tel Aviv ILX) Ben-Ezra Barry (7 Simtat Arougot Rama, Three dimensional modelling apparatus.
Timm Jens Peter, Three-dimensional geometric bio-compatible porous engineered structure for use as a bone mass replacement or fusion augmentation device.
Narayanan Pallassana V. (Davie FL) Rowland Stephen M. (Miami FL) Stanley Kimberly D. (Miami FL), Treatment of metallic surfaces using radiofrequency plasma deposition and chemical attachment of bioactive agents.
Moore, Cowan H.; Theken, Randall R.; Fries, Christopher Lee; Lucas, Eric Montgomery; Barros, Richard, Medical implants having desired surface features and methods of manufacturing.
Moore, Cowan H.; Theken, Randall R.; Fries, Christopher Lee; Lucas, Eric Montgomery; Barros, Richard, Medical implants having desired surface features and methods of manufacturing.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.