Non-uniform porosity tissue implant
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United States of America Patent
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N/A
Issued Date -
Apr 17, 2003
app pub date -
Jul 19, 2002
filing date -
Sep 22, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention is generally directed to a method for the production of tissue implants and prosthetics, including but not limited to orthopedic implants and prosthetics which have a controlled and directional gradient of porosity moving through all or one or more portions of the implant, as well as the implants produced by such a method. The non-uniform porosity gradient may be linear or more complex, and is preferably produced to have a continuous gradient within the desired regions. The desired effect is to create an implant which more closely mimics the natural structure of bone, and which improves the quality of the bone growth that occurs within the implant. In addition, implants can be created with varying porosity in different regions of the implant which are specifically designed to optimize ingrowth of different tissue and cells, to optimize the ability of the implant to withstand varying mechanical loads at specific regions of the implant, and to deliver growth agents to various portions of the implant in a controlled manner.

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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
UNIVERSITY TECHNOLOGY CORPORATION A CORP OF COLORADO | 4001 DISCOVERY DRIVE SUITE 390 BOULDER CO 80309 |
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Ayers, Reed A | Golden, CO | 7 | 169 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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