CA2173318A1 - Preparation of medical devices by solid free-form fabrication methods - Google Patents

Preparation of medical devices by solid free-form fabrication methods

Info

Publication number
CA2173318A1
CA2173318A1 CA002173318A CA2173318A CA2173318A1 CA 2173318 A1 CA2173318 A1 CA 2173318A1 CA 002173318 A CA002173318 A CA 002173318A CA 2173318 A CA2173318 A CA 2173318A CA 2173318 A1 CA2173318 A1 CA 2173318A1
Authority
CA
Canada
Prior art keywords
medical devices
solid free
preparation
fabrication methods
form fabrication
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.)
Granted
Application number
CA002173318A
Other languages
French (fr)
Other versions
CA2173318C (en
Inventor
Linda G. Cima
Michael J. Cima
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.)
Massachusetts Institute of Technology
Original Assignee
Individual
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
Priority claimed from US08/200,636 external-priority patent/US5518680A/en
Application filed by Individual filed Critical Individual
Publication of CA2173318A1 publication Critical patent/CA2173318A1/en
Application granted granted Critical
Publication of CA2173318C publication Critical patent/CA2173318C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • Y10T428/249999—Differentially filled foam, filled plural layers, or filled layer with coat of filling material

Abstract

Solid free-form techniques for making medical devices for controlled release of bioactive agent and implantation and growth of cells are described using computer aided design. Examples of SFF methods include stereo-lithography (SLA), selective laser sintering (SLS), ballistic particle manufacturing (BPM), fusion deposition modeling (FDM), and three dimensional printing (3DP). The macrostructure and porosity of the device can be manipulated by controlling printing parameters. Most importantly, these features can be designed and tailored using computer assisted design (CAD) for individual patients to optimize therapy.
CA002173318A 1993-10-18 1994-10-18 Preparation of medical devices by solid free-form fabrication methods Expired - Lifetime CA2173318C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/138,345 US5490962A (en) 1993-10-18 1993-10-18 Preparation of medical devices by solid free-form fabrication methods
US138,345 1993-10-18
US200,636 1994-02-23
US08/200,636 US5518680A (en) 1993-10-18 1994-02-23 Tissue regeneration matrices by solid free form fabrication techniques
PCT/US1994/011893 WO1995011007A1 (en) 1993-10-18 1994-10-18 Preparation of medical devices by solid free-form fabrication methods

Publications (2)

Publication Number Publication Date
CA2173318A1 true CA2173318A1 (en) 1995-04-27
CA2173318C CA2173318C (en) 2002-01-01

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CA002173318A Expired - Lifetime CA2173318C (en) 1993-10-18 1994-10-18 Preparation of medical devices by solid free-form fabrication methods

Country Status (11)

Country Link
US (3) US5490962A (en)
EP (1) EP0724428B1 (en)
JP (1) JP2930420B2 (en)
AT (1) ATE198146T1 (en)
CA (1) CA2173318C (en)
DE (1) DE69426457T2 (en)
DK (1) DK0724428T3 (en)
ES (1) ES2154302T3 (en)
GR (1) GR3035455T3 (en)
PT (1) PT724428E (en)
WO (1) WO1995011007A1 (en)

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